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In
linguistics Linguistics is the scientific study of human language. It is called a scientific study because it entails a comprehensive, systematic, objective, and precise analysis of all aspects of language, particularly its nature and structure. Lingui ...
, mutual intelligibility is a relationship between
language Language is a structured system of communication. The structure of a language is its grammar and the free components are its vocabulary. Languages are the primary means by which humans communicate, and may be conveyed through a variety of ...
s or
dialect The term dialect (from Latin , , from the Ancient Greek word , 'discourse', from , 'through' and , 'I speak') can refer to either of two distinctly different types of linguistic phenomena: One usage refers to a variety of a language that is ...
s in which speakers of different but related
varieties Variety may refer to: Arts and entertainment Entertainment formats * Variety (radio) * Variety show, in theater and television Films * ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont * ''Variety'' (1935 film), ...
can readily understand each other without prior familiarity or special effort. It is sometimes used as an important criterion for distinguishing languages from dialects, although
sociolinguistic Sociolinguistics is the descriptive study of the effect of any or all aspects of society, including cultural norms, expectations, and context, on the way language is used, and society's effect on language. It can overlap with the sociology of ...
factors are often also used. Intelligibility between languages can be asymmetric, with speakers of one understanding more of the other than speakers of the other understanding the first. When it is relatively symmetric, it is characterized as "mutual". It exists in differing degrees among many related or geographically proximate languages of the world, often in the context of a
dialect continuum A dialect continuum or dialect chain is a series of language varieties spoken across some geographical area such that neighboring varieties are mutually intelligible, but the differences accumulate over distance so that widely separated vari ...
.


Intelligibility


Factors

An individual's achievement of moderate proficiency or understanding in a language (called L2) other than their
first language A first language, native tongue, native language, mother tongue or L1 is the first language or dialect that a person has been exposed to from birth or within the critical period. In some countries, the term ''native language'' or ''mother tong ...
(L1) typically requires considerable time and effort through study and practical application if the two languages are not very closely related. Advanced speakers of a second language typically aim for intelligibility, especially in situations where they work in their second language and the necessity of being understood is high. However, many groups of languages are partly mutually intelligible, i.e. most speakers of one language find it relatively easy to achieve some degree of understanding in the related language(s). Often the two languages are genetically related, and they are likely to be similar to each other in
grammar In linguistics, the grammar of a natural language is its set of structural constraints on speakers' or writers' composition of clauses, phrases, and words. The term can also refer to the study of such constraints, a field that includes dom ...
,
vocabulary A vocabulary is a set of familiar words within a person's language. A vocabulary, usually developed with age, serves as a useful and fundamental tool for communication and acquiring knowledge. Acquiring an extensive vocabulary is one of the la ...
,
pronunciation Pronunciation is the way in which a word or a language is spoken. This may refer to generally agreed-upon sequences of sounds used in speaking a given word or language in a specific dialect ("correct pronunciation") or simply the way a particula ...
, or other features. Intelligibility among languages can vary between individuals or groups within a language population according to their knowledge of various registers and vocabulary in their own language, their exposure to additional related languages, their interest in or familiarity with other cultures, the domain of discussion, psycho-
cognitive Cognition refers to "the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, ...
traits, the mode of language used (written vs. oral), and other factors. Linguistic distance is the name for the concept of calculating a measurement for how different languages are from one another. The higher the linguistic distance, the lower the mutual intelligibility.


Asymmetric intelligibility

Asymmetric intelligibility refers to two languages that are considered partially mutually intelligible, but where one group of speakers has more difficulty understanding the other language than the other way around. There can be various reasons for this. If, for example, one language is related to another but has simplified its grammar, the speakers of the original language may understand the simplified language, but less vice versa. For example,
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People ...
speakers tend to find it easier to understand
Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans g ...
than vice versa as a result of Afrikaans' simplified grammar.


Among sign languages

Sign language Sign languages (also known as signed languages) are languages that use the visual-manual modality to convey meaning, instead of spoken words. Sign languages are expressed through manual articulation in combination with non-manual markers. Sign l ...
s are not universal and are usually not mutually intelligible, although there are also similarities among different sign languages. Sign languages are independent of
spoken language A spoken language is a language produced by articulate sounds or (depending on one's definition) manual gestures, as opposed to a written language. An oral language or vocal language is a language produced with the vocal tract in contrast with a s ...
s and follow their own paths of development. For example,
British Sign Language British Sign Language (BSL) is a sign language used in the United Kingdom (UK), and is the first or preferred language among the Deaf community in the UK. Based on the percentage of people who reported 'using British Sign Language at home' o ...
(BSL) and
American Sign Language American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States of America and most of Anglophone Canada. ASL is a complete and organized visual language that is express ...
(ASL) are quite different and mutually unintelligible, even though the hearing people of the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
and the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territor ...
share the same spoken language. The grammars of sign languages do not usually resemble those of spoken languages used in the same geographical area; in fact, in terms of syntax, ASL shares more with spoken
Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...
than it does with English.


As a criterion for identifying separate languages

Some
linguists Linguistics is the scientific study of human language. It is called a scientific study because it entails a comprehensive, systematic, objective, and precise analysis of all aspects of language, particularly its nature and structure. Linguis ...
use mutual intelligibility as a primary criterion for determining whether two speech varieties represent the same or different languages. In a similar vein, some claim that mutual intelligibility is, ideally at least, the primary criterion separating languages from dialects. A primary challenge to these positions is that speakers of closely related languages can often communicate with each other effectively if they choose to do so. In the case of transparently cognate languages officially recognized as distinct such as Spanish and Italian, mutual intelligibility is in principle and in practice not binary (simply yes or no), but occurs in varying degrees, subject to numerous variables specific to individual speakers in the context of the communication. Classifications may also shift for reasons external to the languages themselves. As an example, in the case of a linear
dialect continuum A dialect continuum or dialect chain is a series of language varieties spoken across some geographical area such that neighboring varieties are mutually intelligible, but the differences accumulate over distance so that widely separated vari ...
that shades gradually between varieties, where speakers near the center can understand the varieties at both ends with relative ease, but speakers at one end have difficulty understanding the speakers at the other end, the entire chain is often considered a single language. If the central varieties die out and only the varieties at both ends survive, they may then be reclassified as two languages, even though no actual language change has occurred during the time of the loss of the central varieties. In this case, too, however, while mutual intelligibility between speakers of the distant remnant languages may be greatly constrained, it is likely not at the zero level of completely unrelated languages. In addition, political and social conventions often override considerations of mutual intelligibility in both scientific and non-scientific views. For example, the
varieties of Chinese Chinese, also known as Sinitic, is a branch of the Sino-Tibetan language family consisting of hundreds of local varieties, many of which are not mutually intelligible. Variation is particularly strong in the more mountainous southeast of ...
are often considered a single language even though there is usually no mutual intelligibility between geographically separated varieties. Another similar example would be
varieties of Arabic The varieties (or dialects or vernacular languages) of Arabic, a Semitic language within the Afroasiatic family originating in the Arabian Peninsula, are the linguistic systems that Arabic speakers speak natively. There are considerable varia ...
, which additionally share a single
prestige variety In sociolinguistics, prestige is the level of regard normally accorded a specific language or dialect within a speech community, relative to other languages or dialects. Prestige varieties are language or dialect families which are generally ...
in
Modern Standard Arabic Modern Standard Arabic (MSA) or Modern Written Arabic (MWA), terms used mostly by linguists, is the variety of standardized, literary Arabic that developed in the Arab world in the late 19th and early 20th centuries; occasionally, it also ...
. In contrast, there is often significant intelligibility between different
Scandinavian languages The North Germanic languages make up one of the three branches of the Germanic languages—a sub-family of the Indo-European languages—along with the West Germanic languages and the extinct East Germanic languages. The language group is also ...
, but as each of them has its own standard form, they are classified as separate languages. However, others have suggested that these objections are misguided, as they collapse different concepts of what constitutes a "language". To deal with the conflict in cases such as
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walte ...
, Chinese and
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
, the term ''
Dachsprache In sociolinguistics, an abstand language is a language variety or cluster of varieties with significant linguistic distance from all others, while an ausbau language is a standard variety, possibly with related dependent varieties. Heinz Klos ...
'' (a
sociolinguistic Sociolinguistics is the descriptive study of the effect of any or all aspects of society, including cultural norms, expectations, and context, on the way language is used, and society's effect on language. It can overlap with the sociology of ...
"umbrella language") is sometimes seen: Chinese and German are languages in the sociolinguistic sense even though speakers of some varieties cannot understand each other without recourse to a standard or prestige form.


Within dialect continua


North Germanic

Northern Germanic languages spoken in Scandinavia form a
dialect continuum A dialect continuum or dialect chain is a series of language varieties spoken across some geographical area such that neighboring varieties are mutually intelligible, but the differences accumulate over distance so that widely separated vari ...
where two furthermost dialects have almost no mutual intelligibility. As such, spoken Danish and Swedish normally have low mutual intelligibility, but Swedes in the Öresund region (including
Malmö Malmö (, ; da, Malmø ) is the largest city in the Swedish county (län) of Scania (Skåne). It is the third-largest city in Sweden, after Stockholm and Gothenburg, and the sixth-largest city in the Nordic region, with a municipal popula ...
and
Helsingborg Helsingborg (, , , ) is a city and the seat of Helsingborg Municipality, Scania (Skåne), Sweden. It is the second-largest city in Scania (after Malmö) and ninth-largest in Sweden, with a population of 113,816 (2020). Helsingborg is the ce ...
), across a strait from the Danish capital
Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan a ...
, understand Danish somewhat better, largely due to the proximity of the region to Danish-speaking areas. While Norway was under Danish rule, the
Bokmål Bokmål () (, ; ) is an official written standard for the Norwegian language, alongside Nynorsk. Bokmål is the preferred written standard of Norwegian for 85% to 90% of the population in Norway. Unlike, for instance, the Italian language, there ...
written standard of Norwegian developed from
Dano-Norwegian Dano-Norwegian ( Danish and no, dansk-norsk) was a koiné/ mixed language that evolved among the urban elite in Norwegian cities during the later years of the union between the Kingdoms of Denmark and Norway (1536/1537–1814). It is from th ...
, a
koiné language In linguistics, a koiné language, koiné dialect, or simply koiné (Ancient Greek κοινή, "common anguage) is a standard or common language or dialect that has arisen as a result of the contact, mixing, and often simplification of two or ...
that evolved among the urban elite in Norwegian cities during the later years of the union. Additionally, Norwegian assimilated a considerable amount of Danish vocabulary as well as traditional Danish expressions. As a consequence, spoken mutual intelligibility is not reciprocal.


Romance

Because of the difficulty of imposing boundaries on a continuum, various counts of the
Romance languages The Romance languages, sometimes referred to as Latin languages or Neo-Latin languages, are the various modern languages that evolved from Vulgar Latin. They are the only extant subgroup of the Italic languages in the Indo-European language ...
are given; in ''The Linguasphere register of the world’s languages and speech communities'' David Dalby lists 23 based on mutual intelligibility: * Iberian Romance: Portuguese, Galician, Mirandese,
Astur-Leonese Asturleonese ( ast, Asturlleonés; es, Asturleonés; pt, Asturo-leonês; mwl, Asturlhionés) is a Romance language spoken primarily in northwestern Spain, namely in the historical regions and Spain's modern-day autonomous communities of As ...
, Castilian, Aragonese; *
Occitano-Romance The Occitano-Romance or Gallo-Narbonnese ( ca, llengües occitanoromàniques; oc, lengas occitanoromanicas), or rarely East Iberian, is a branch of the Romance language group that encompasses the Catalan/Valencian and Occitan languages spoken ...
: Catalan,
Occitan Occitan may refer to: * Something of, from, or related to the Occitania territory in parts of France, Italy, Monaco and Spain. * Something of, from, or related to the Occitania administrative region of France. * Occitan language Occitan (; ...
; *
Gallo-Romance The Gallo-Romance branch of the Romance languages includes in the narrowest sense the Langues d'oïl and Franco-Provençal. However, other definitions are far broader, variously encompassing the Occitano-Romance, Gallo-Italic, and Rhaeto-Roma ...
:
Langues d'oïl The ''langues d'oïl'' (; ) are a dialect continuum that includes standard French and its closest autochthonous relatives historically spoken in the northern half of France, southern Belgium, and the Channel Islands. These belong to the larg ...
(including
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ...
),
Franco-Provençal Franco-Provençal (also Francoprovençal, Patois or Arpitan) is a language within Gallo-Romance originally spoken in east-central France, western Switzerland and northwestern Italy. Franco-Provençal has several distinct dialects and is s ...
; *
Rhaeto-Romance Rhaeto-Romance, Rheto-Romance, or Rhaetian, is a purported subfamily of the Romance languages that is spoken in south-eastern Switzerland and north-eastern Italy. The name "Rhaeto-Romance" refers to the former Roman province of Raetia. The questi ...
: Romansh, Ladin, Friulian; *
Gallo-Italic The Gallo-Italic, Gallo-Italian, Gallo-Cisalpine or simply Cisalpine languages constitute the majority of the Romance languages of northern Italy. They are Piedmontese, Lombard, Emilian, Ligurian, and Romagnol. Although most publications de ...
:
Piedmontese Piedmontese (; autonym: or , in it, piemontese) is a language spoken by some 2,000,000 people mostly in Piedmont, northwestern region of Italy. Although considered by most linguists a separate language, in Italy it is often mistakenly regard ...
, Ligurian, Lombard, Emilian-Romagnol,
Venetian Venetian often means from or related to: * Venice, a city in Italy * Veneto, a region of Italy * Republic of Venice (697–1797), a historical nation in that area Venetian and the like may also refer to: * Venetian language, a Romance language s ...
; *
Italo-Dalmatian The Italo-Dalmatian languages, or Central Romance languages, are a group of Romance languages spoken in Italy, Corsica (France), and formerly in Dalmatia (Croatia). Italo-Dalmatian can be split into:Hammarström, Harald & Forkel, Robert & Haspe ...
: Corsican,
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional It ...
, Neapolitan, Sicilian,
Istriot The Istriot language () is a Romance language of the Italo-Dalmatian branch spoken by about 400 people in the southwestern part of the Istrian peninsula in Croatia, particularly in Rovinj and Vodnjan. It should not be confused with the Istrian ...
, Dalmatian (extinct); * Sardinian; * Eastern Romance: Daco-Romanian, Istro-Romanian, Aromanian, Megleno-Romanian.


South Slavic

Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia ...
dialects in relation to Slovene, Macedonian, and Bulgarian: The non-standard vernacular dialects of Serbo-Croatian (i.e. non- Shtokavian dialects:
Kajkavian Kajkavian (Kajkavian noun: ''kajkavščina''; Shtokavian adjective: ''kajkavski'' , noun: ''kajkavica'' or ''kajkavština'' ) is a South Slavic regiolect or language spoken primarily by Croats in much of Central Croatia, Gorski Kotar and no ...
,
Chakavian Chakavian or Čakavian (, , , sh-Latn, čakavski proper name: or own name: ''čokovski, čakavski, čekavski'') is a South Slavic regiolect or language spoken primarily by Croats along the Adriatic coast, in the historical regions of Dalm ...
and Torlakian) diverge more significantly from all four normative varieties. Their mutual intelligibility varies greatly, between the dialects themselves, with Shtokavian, and with other languages. * Kajkavian has higher mutual intelligibility with Slovene than with the national varieties of Shtokavian * Chakavian has a low mutual intelligibility with either, in part due to its large number of loanwords from Venetian. * Torlakian (considered a subdialect of Serbian Old Shtokavian by some) has significant mutual intelligibility with Macedonian and Bulgarian. All South Slavic languages in effect form a large dialect continuum of gradually mutually intelligible varieties depending on distance between the areas where they are spoken.


List of mutually intelligible languages


Written and spoken forms

* Azerbaijani: Crimean Tatar, Gagauz, Turkish and UrumKasapoğlu Çengel, Hülya (2004)
Ukrayna'daki Urum Türkleri ve Folkloru
Milli Folklor, 2004, Yıl. 16, S. 16, s. 59
(partially and asymmetrically) *
Belarusian Belarusian may refer to: * Something of, or related to Belarus * Belarusians, people from Belarus, or of Belarusian descent * A citizen of Belarus, see Demographics of Belarus * Belarusian language * Belarusian culture * Belarusian cuisine * Byelor ...
: Russian and Ukrainian (both partially)Alexander M. Schenker. 1993. "Proto-Slavonic," ''The Slavonic Languages''. (Routledge). Pp. 60–121. Pg. 60: " hedistinction between dialect and language being blurred, there can be no unanimity on this issue in all instances..."
C.F. Voegelin and F.M. Voegelin. 1977. ''Classification and Index of the World's Languages'' (Elsevier). Pg. 311, "In terms of immediate mutual intelligibility, the East Slavic zone is a single language."
Bernard Comrie. 1981. ''The Languages of the Soviet Union'' (Cambridge). Pg. 145–146: "The three East Slavonic languages are very close to one another, with very high rates of mutual intelligibility...The separation of Russian, Ukrainian, and Belorussian as distinct languages is relatively recent...Many Ukrainians in fact speak a mixture of Ukrainian and Russian, finding it difficult to keep the two languages apart...
* Bulgarian: Macedonian (significantly)Language profile Macedonian
, UCLA International Institute
* Crimean Tatar: Azerbaijani, Gagauz, Turkish and Urum (partially and asymmetrically) *
Czech Czech may refer to: * Anything from or related to the Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to ...
: Slovak (significantly), Polish (partially) * Danish: Norwegian and
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
(both partially and asymmetrically) *
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People ...
:
Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans g ...
(in written form; in spoken form partially), and West Frisian (partially) *
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national id ...
: Scots (partially) * Estonian: Finnish (partially) * Finnish: Estonian (partially), Karelian (significantly) * Gagauz: Azerbaijani, Crimean Tatar, Turkish and Urum (partially and asymmetrically) * Hiligaynon:
Capiznon Capiznon or Capiceño () is an Austronesian regional language spoken in Western Visayas in the Philippines. Capiznon is concentrated in the province of Capiz in the northeast of Panay Island. It is a member of the Bisayan language family and th ...
(significantly) and Cebuano (significantly) *
Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...
:
Scottish Gaelic Scottish Gaelic ( gd, Gàidhlig ), also known as Scots Gaelic and Gaelic, is a Goidelic language (in the Celtic branch of the Indo-European language family) native to the Gaels of Scotland. As a Goidelic language, Scottish Gaelic, as well ...
(partially) *
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional It ...
: Corsican (significantly),
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
, Portuguese and Catalan (partially) *
Limburgish Limburgish ( li, Limburgs or ; nl, Limburgs ; german: Limburgisch ; french: Limbourgeois ), also called Limburgan, Limburgian, or Limburgic, is a West Germanic language spoken in the Dutch and Belgian provinces of Limburg and in the neig ...
:
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People ...
and
Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans g ...
(partially) * Macedonian: Bulgarian (significantly),
Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia ...
(partially and asymmetrically)Macedonian language
on UCLA
*
Manchu The Manchus (; ) are a Tungusic East Asian ethnic group native to Manchuria in Northeast Asia. They are an officially recognized ethnic minority in China and the people from whom Manchuria derives its name. The Later Jin (1616–1636) ...
: Xibe *
Marathi Marathi may refer to: *Marathi people, an Indo-Aryan ethnolinguistic group of Maharashtra, India *Marathi language, the Indo-Aryan language spoken by the Marathi people * Palaiosouda, also known as Marathi, a small island in Greece See also * ...
: Konkani (significantly) * Norwegian: Danish and
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
(both partially and asymmetrically) * Polish: Slovak (reasonably),
Czech Czech may refer to: * Anything from or related to the Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to ...
(partially) * Portuguese: Galician (very high),
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional It ...
(partially)GAVILANES LASO, J. L. (1996) ''Algunas consideraciones sobre la inteligibilidad mutua hispano-portuguesa'' In: Actas del Congreso Internacional Luso-Español de Lengua y Cultura en la Frontera, Cáceres, Universidad de Extremadura, 175–187. *
Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language ***Romanian dialects, variants of the Romanian language **Romanian cuisine, traditional ...
: Aromanian, Megleno-Romanian and Istro-Romanian (significantly) * Russian:
Belarusian Belarusian may refer to: * Something of, or related to Belarus * Belarusians, people from Belarus, or of Belarusian descent * A citizen of Belarus, see Demographics of Belarus * Belarusian language * Belarusian culture * Belarusian cuisine * Byelor ...
and Ukrainian (both partially) *
Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia ...
: Slovene (partially and asymmetrically), Macedonian (partially and asymmetrically) * Slovak:
Czech Czech may refer to: * Anything from or related to the Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to ...
(significantly), Polish (reasonably) * Slovene:
Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia ...
(partially and asymmetrically) *
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
: Portuguese (significantly in written form; asymmetrically in spoken form),
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional It ...
(partially) *
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
: Danish and Norwegian (both partially and asymmetrically) *
Tunisian Arabic Tunisian Arabic, or simply Tunisian, is a set of dialects of Maghrebi Arabic spoken in Tunisia. It is known among its over 11 million speakers aeb, translit=Tounsi/Tounsiy, label=as, تونسي , "Tunisian" or "Everyday Language" to distingu ...
:
Maltese Maltese may refer to: * Someone or something of, from, or related to Malta * Maltese alphabet * Maltese cuisine * Maltese culture * Maltese language, the Semitic language spoken by Maltese people * Maltese people, people from Malta or of Maltes ...
(significantly),Borg, Albert J.; Azzopardi-Alexander, Marie (1997). Maltese. Routledge. .
Algerian Arabic Algerian Arabic (natively known as Dziria) is a dialect derived from the form of Arabic spoken in northern Algeria. It belongs to the Maghrebi Arabic language continuum and is partially mutually intelligible with Tunisian and Moroccan. Li ...
and
Libyan Arabic Libyan Arabic ( ar, ليبي, Lībī) is a variety of Arabic spoken mainly in Libya, and neighboring countries. It can be divided into two major dialect areas; the eastern centred in Benghazi and Bayda, and the western centred in Tripoli and ...
(both partially) * Turkish: Azerbaijani, Crimean Tatar, Gagauz and Urum (partially and asymmetrically) * Ukrainian:
Belarusian Belarusian may refer to: * Something of, or related to Belarus * Belarusians, people from Belarus, or of Belarusian descent * A citizen of Belarus, see Demographics of Belarus * Belarusian language * Belarusian culture * Belarusian cuisine * Byelor ...
and Russian (partially) * Urum: Azerbaijani, Crimean Tatar, Gagauz and Turkish (partially and asymmetrically) * Uyghur: Uzbek (formerly known as Eastern and Western dialects of
Turki Chagatai (چغتای, ''Čaġatāy''), also known as ''Turki'', Eastern Turkic, or Chagatai Turkic (''Čaġatāy türkīsi''), is an extinct Turkic literary language that was once widely spoken across Central Asia and remained the shared literar ...
) * Uzbek: Uyghur (formerly known as Western and Eastern dialects of
Turki Chagatai (چغتای, ''Čaġatāy''), also known as ''Turki'', Eastern Turkic, or Chagatai Turkic (''Čaġatāy türkīsi''), is an extinct Turkic literary language that was once widely spoken across Central Asia and remained the shared literar ...
) * Xibe:
Manchu The Manchus (; ) are a Tungusic East Asian ethnic group native to Manchuria in Northeast Asia. They are an officially recognized ethnic minority in China and the people from whom Manchuria derives its name. The Later Jin (1616–1636) ...
* Zulu: Northern Ndebele (partially), Xhosa (partially), and
Swazi Swazi may refer to: * Swazi people, a people of southeastern Africa * Swazi language * Eswatini Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked cou ...
(partially; the first three are often considered to be dialects of a uniform Zunda language)


Spoken forms mainly

* Akha, Honi, Hani (variety of different written scripts) * Dungan: Mandarin, especially with
Central Plains Mandarin Central Plains Mandarin, or ''Zhongyuan'' Mandarin (), is a variety of Mandarin Chinese spoken in the central and southern parts of Shaanxi, Henan, southwestern part of Shanxi, southern part of Gansu, far southern part of Hebei, northern Anhui, n ...
p. 351. (partially; Dungan is usually written in Cyrillic and Mandarin usually in Chinese characters) * Esan:
Edo Edo ( ja, , , "bay-entrance" or "estuary"), also romanized as Jedo, Yedo or Yeddo, is the former name of Tokyo. Edo, formerly a '' jōkamachi'' (castle town) centered on Edo Castle located in Musashi Province, became the ''de facto'' capital of ...
(the different varieties of
Edoid The Edoid languages are a few dozen languages spoken in Southern Nigeria, predominantly in the former Bendel State. The name ''Edoid'' derives from its most widely spoken member, Edo, the language of Benin City, which has 25 million native and s ...
languages are mutually intelligible, such that successful communication between speakers is not affected). *
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
:
Yiddish Yiddish (, or , ''yidish'' or ''idish'', , ; , ''Yidish-Taytsh'', ) is a West Germanic language historically spoken by Ashkenazi Jews. It originated during the 9th century in Central Europe, providing the nascent Ashkenazi community with a ...
(because German is usually written in Latin script and Yiddish usually in the
Hebrew alphabet The Hebrew alphabet ( he, אָלֶף־בֵּית עִבְרִי, ), known variously by scholars as the Ktav Ashuri, Jewish script, square script and block script, is an abjad script used in the writing of the Hebrew language and other Jewi ...
). However, Yiddish's use of many borrowed words, chiefly from Hebrew and Slavic languages, makes it more difficult for a German speaker to understand spoken Yiddish than the reverse. *
Hindi Hindi (Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of northern, central, eastern, and western India. Hindi has bee ...
:
Urdu Urdu (;"Urdu"
'' Hindustani language Hindustani (; Devanagari: , * * * * ; Perso-Arabic: , , ) is the ''lingua franca'' of Northern and Central India and Pakistan. Hindustani is a pluricentric language with two standard registers, known as Hindi and Urdu. Thus, the lan ...
. * Chittagonian:
Rohingya The Rohingya people () are a stateless Indo-Aryan ethnic group who predominantly follow Islam and reside in Rakhine State, Myanmar (previously known as Burma). Before the Rohingya genocide in 2017, when over 740,000 fled to Bangladesh, ...
(The Chittagonian and Rohingya languages have a high degree of mutual intelligibility, while Chittagonian is written with Eastern Nagri script and Rohingya is written with Hanifi script) * Maltese:
Tunisian Arabic Tunisian Arabic, or simply Tunisian, is a set of dialects of Maghrebi Arabic spoken in Tunisia. It is known among its over 11 million speakers aeb, translit=Tounsi/Tounsiy, label=as, تونسي , "Tunisian" or "Everyday Language" to distingu ...
(partially; Maltese is written with the
Latin script The Latin script, also known as Roman script, is an alphabetic writing system based on the letters of the classical Latin alphabet, derived from a form of the Greek alphabet which was in use in the ancient Greek city of Cumae, in southern ...
while Tunisian Arabic is written with the
Arabic script The Arabic script is the writing system used for Arabic and several other languages of Asia and Africa. It is the second-most widely used List of writing systems by adoption, writing system in the world by number of countries using it or a scri ...
) *
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
:
Judeo-Spanish Judaeo-Spanish or Judeo-Spanish (autonym , Hebrew script: , Cyrillic: ), also known as Ladino, is a Romance language derived from Old Spanish. Originally spoken in Spain, and then after the Edict of Expulsion spreading through the Ottoman Empi ...
(because Spanish is usually written in Latin script and Judeo-Spanish usually in the Hebrew alphabet). Depending on dialect and the number of non-Spanish loanwords used. * Polish: Ukrainian and
Belarusian Belarusian may refer to: * Something of, or related to Belarus * Belarusians, people from Belarus, or of Belarusian descent * A citizen of Belarus, see Demographics of Belarus * Belarusian language * Belarusian culture * Belarusian cuisine * Byelor ...
(both partially; moreover, Belarusian and Ukrainian are written in
Cyrillic , bg, кирилица , mk, кирилица , russian: кириллица , sr, ћирилица, uk, кирилиця , fam1 = Egyptian hieroglyphs , fam2 = Proto-Sinaitic , fam3 = Phoenician , fam4 = G ...
, while Polish is written in
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of ...
) * Thai:
Southern Thai Southern Thailand, Southern Siam or Tambralinga is a southernmost cultural region of Thailand, separated from Central Thailand region by the Kra Isthmus. Geography Southern Thailand is on the Malay Peninsula, with an area of around , bounded t ...
, Lao (
Isan Northeast Thailand or Isan (Isan/ th, อีสาน, ; lo, ອີສານ; also written as Isaan, Isarn, Issarn, Issan, Esan, or Esarn; from Pali ''īsānna'' or Sanskrit ईशान्य ''īśānya'' "northeast") consists of 20 provin ...
), Northern Thai, Shan and Tai Lue (both partially and asymmetrically; only Central Thai and Southern Thai are significantly mutually intelligible both in written and spoken forms, while other languages have their own scripts.) * Uzbek: Uyghur (Uzbek uses a Latin alphabet whereas Uyghur uses an alphabet based on the Arabic script)


Written forms mainly

*
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ...
:
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional It ...
, Portuguese and
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
. French in its spoken form is not mutually intelligible with Spanish, Portuguese, or Italian due to the great phonological changes that it underwent, but it has partial intelligibility with all three in written form because it preserves its writing from
Middle French Middle French (french: moyen français) is a historical division of the French language that covers the period from the 14th to the 16th century. It is a period of transition during which: * the French language became clearly distinguished from t ...
with very few changes. According to phonological studies, French is the Romance language that has distanced itself the most from Latin. Also, the incorporation of some Germanic words in the base lexicon makes it more difficult for speakers of other Romance languages to understand. According to
Ethnologue ''Ethnologue: Languages of the World'' (stylized as ''Ethnoloɠue'') is an annual reference publication in print and online that provides statistics and other information on the living languages of the world. It is the world's most comprehensi ...
, French has 89%
lexical similarity In linguistics, lexical similarity is a measure of the degree to which the word sets of two given languages are similar. A lexical similarity of 1 (or 100%) would mean a total overlap between vocabularies, whereas 0 means there are no common words. ...
with Italian and 75% with Portuguese and Spanish (both of which have incorporated some Arabic, Amerindian and African vocabulary). *
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
:
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People ...
. Standard Dutch and
Standard German Standard High German (SHG), less precisely Standard German or High German (not to be confused with High German dialects, more precisely Upper German dialects) (german: Standardhochdeutsch, , or, in Switzerland, ), is the standardized variety ...
show a limited degree of mutual intelligibility when written. One study concerning written language concluded that Dutch speakers could translate 50.2% of the provided German words correctly, while the German test subjects were able to translate 41.9% of the Dutch equivalents correctly. Another study showed that while Dutch speakers could correctly translate 71% of German
cognate In historical linguistics, cognates or lexical cognates are sets of words in different languages that have been inherited in direct descent from an etymological ancestor in a common parent language. Because language change can have radical e ...
s, they could only translate 26.6% of non-cognates correctly, suggesting a widely fluctuating intelligibility. In terms of orthography, 22% of the vocabulary of Dutch and German is identical or near identical. The
Levenshtein distance In information theory, linguistics, and computer science, the Levenshtein distance is a string metric for measuring the difference between two sequences. Informally, the Levenshtein distance between two words is the minimum number of single-charac ...
between written Dutch and German is 50.4% as opposed to 61.7% between English and Dutch. The spoken languages are much more difficult to understand for both. Studies show Dutch speakers have slightly less difficulty in understanding German speakers than vice versa. It remains unclear whether this
asymmetry Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection). Symmetry is an important property of both physical and abstract systems and it may be displayed in pre ...
has to do with prior knowledge of the language (Dutch people are more exposed to German than vice versa), better knowledge of another related language (
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national id ...
) or any other non-linguistic reasons. * Icelandic: Faroese.


List of languages sometimes considered varieties

Below is an ''incomplete'' list of fully and partially mutually intelligible languages, that are so similar that they are sometimes considered not to be separate, but merely varieties of the same language. * Karakalpak: Kazakh and Nogai ** Many Turkic languages are mutually intelligible to a higher or lower degree, but thorough empirical research is needed to establish the exact levels and patterns of mutual intelligibility between the languages of this linguistic family. The British Academy funded research project dedicated to examining mutual intelligibility between Karakalpak, Kazakh and Uzbek languages is currently under way at the
University of Surrey The University of Surrey is a public research university in Guildford, Surrey, England. The university received its royal charter in 1966, along with a number of other institutions following recommendations in the Robbins Report. The institu ...
. * Kazakh: Karakalpak, Nogai, Altay and Kyrgyz *
Kinyarwanda Kinyarwanda, Rwandan or Rwanda, officially known as Ikinyarwanda, is a Bantu language and a dialect of the Rwanda-Rundi language that is spoken in Rwanda and adjacent parts of Burundi, the Democratic Republic of the Congo, Uganda (where ther ...
:
Kirundi Kirundi, also known as Rundi, is a Bantu language spoken by some 9 million people in Burundi and adjacent parts of Rwanda, Tanzania, the Democratic Republic of the Congo, Uganda, as well as in Kenya. It is the official language of Burundi. Kiru ...
*
Kirundi Kirundi, also known as Rundi, is a Bantu language spoken by some 9 million people in Burundi and adjacent parts of Rwanda, Tanzania, the Democratic Republic of the Congo, Uganda, as well as in Kenya. It is the official language of Burundi. Kiru ...
:
Kinyarwanda Kinyarwanda, Rwandan or Rwanda, officially known as Ikinyarwanda, is a Bantu language and a dialect of the Rwanda-Rundi language that is spoken in Rwanda and adjacent parts of Burundi, the Democratic Republic of the Congo, Uganda (where ther ...
* Kyrgyz: Kazakh and Altay and Karakalpak * Samoan:
Tokelauan Tokelauan is a Polynesian language spoken in Tokelau and on Swains Island (or Olohega) in American Samoa. It is closely related to Tuvaluan and is related to Samoan and other Polynesian languages. Tokelauan has a co-official status with Engli ...
and Tuvaluan (partially) *
Tokelauan Tokelauan is a Polynesian language spoken in Tokelau and on Swains Island (or Olohega) in American Samoa. It is closely related to Tuvaluan and is related to Samoan and other Polynesian languages. Tokelauan has a co-official status with Engli ...
: Tuvaluan and Samoan (partially) * Tuvaluan:
Tokelauan Tokelauan is a Polynesian language spoken in Tokelau and on Swains Island (or Olohega) in American Samoa. It is closely related to Tuvaluan and is related to Samoan and other Polynesian languages. Tokelauan has a co-official status with Engli ...
and Samoan (partially)


List of dialects or varieties sometimes considered separate languages

*
Akan Akan may refer to: People and languages * Akan people, an ethnic group in Ghana and Côte d'Ivoire * Akan language, a language spoken by the Akan people * Kwa languages, a language group which includes Akan * Central Tano languages, a language gro ...
:
Twi Twi () is a dialect of the Akan language spoken in southern and central Ghana by several million people, mainly of the Akan people, the largest of the seventeen major ethnic groups in Ghana. Twi has about 17-18 million speakers in total, includ ...
and Fante. *
Northeastern Neo-Aramaic Northeastern Neo-Aramaic (NENA) is a grouping of related dialects of Neo-Aramaic spoken before World War I as a vernacular language by Jews and Christians between the Tigris and Lake Urmia, stretching north to Lake Van and southwards to Mosul and ...
(NENA) is a
dialect continuum A dialect continuum or dialect chain is a series of language varieties spoken across some geographical area such that neighboring varieties are mutually intelligible, but the differences accumulate over distance so that widely separated vari ...
, with some dialects being mutually intelligible and others not. While Zakho Jewish Neo-Aramaic and Zakho Christian Neo-Aramaic are mutually intelligible, especially on the eastern edge (in Iran), Jewish and Christian NENA varieties spoken in the same town are not mutually intelligible. * Catalan:
Valencian Valencian () or Valencian language () is the official, historical and traditional name used in the Valencian Community (Spain), and unofficially in the El Carche comarca in Murcia (Spain), to refer to the Romance language also known as Cat ...
– the standard forms are structurally the same language and share the vast majority of their vocabulary, and hence highly mutually intelligible. They are considered separate languages only for political reasons. * Hindustani:
Hindi Hindi (Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of northern, central, eastern, and western India. Hindi has bee ...
and
Urdu Urdu (;"Urdu"
'' Devanagari Devanagari ( ; , , Sanskrit pronunciation: ), also called Nagari (),Kathleen Kuiper (2010), The Culture of India, New York: The Rosen Publishing Group, , page 83 is a left-to-right abugida (a type of segmental writing system), based on the ...
and Urdu mainly in a
Perso-Arabic script The Persian alphabet ( fa, الفبای فارسی, Alefbâye Fârsi) is a writing system that is a version of the Arabic script used for the Persian language spoken in Iran ( Western Persian) and Afghanistan ( Dari Persian) since the 7th ce ...
, and with Hindi drawing its literary and formal vocabulary mainly from
Sanskrit Sanskrit (; attributively , ; nominally , , ) is a classical language belonging to the Indo-Aryan branch of the Indo-European languages. It arose in South Asia after its predecessor languages had diffused there from the northwest in the l ...
and Urdu drawing it mainly from
Persian Persian may refer to: * People and things from Iran, historically called ''Persia'' in the English language ** Persians, the majority ethnic group in Iran, not to be conflated with the Iranic peoples ** Persian language, an Iranian language of the ...
and
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walte ...
. *
Malay Malay may refer to: Languages * Malay language or Bahasa Melayu, a major Austronesian language spoken in Indonesia, Malaysia, Brunei and Singapore ** History of the Malay language, the Malay language from the 4th to the 14th century ** Indones ...
: Indonesian (the standard regulated by
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gu ...
),
Brunei Brunei ( , ), formally Brunei Darussalam ( ms, Negara Brunei Darussalam, Jawi: , ), is a country located on the north coast of the island of Borneo in Southeast Asia. Apart from its South China Sea coast, it is completely surrounded by t ...
and Malaysian (the standard used in
Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federal constitutional monarchy consists of thirteen states and three federal territories, separated by the South China Sea into two regions: Peninsular Malaysia and Borneo's East Mal ...
,
Brunei Brunei ( , ), formally Brunei Darussalam ( ms, Negara Brunei Darussalam, Jawi: , ), is a country located on the north coast of the island of Borneo in Southeast Asia. Apart from its South China Sea coast, it is completely surrounded by t ...
and
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
). Both varieties are based on the same material basis and hence are generally
mutually intelligible In linguistics, mutual intelligibility is a relationship between languages or dialects in which speakers of different but related varieties can readily understand each other without prior familiarity or special effort. It is sometimes used as a ...
, despite the numerous lexical differences. Certain linguistic sources also treat the two standards on equal standing as varieties of the same Malay language. Malaysians tend to assert that Malaysian and Indonesian are merely different normative varieties of the same language, while Indonesians tend to treat them as separate, albeit closely related, languages. However, vernacular or less formal varieties spoken between these two countries share limited intelligibility, evidenced by Malaysians having difficulties understanding Indonesian sinetron (soap opera) aired on their TV stations, and vice versa. *
Persian Persian may refer to: * People and things from Iran, historically called ''Persia'' in the English language ** Persians, the majority ethnic group in Iran, not to be conflated with the Iranic peoples ** Persian language, an Iranian language of the ...
:
Dari Dari (, , ), also known as Dari Persian (, ), is the variety of the Persian language spoken in Afghanistan. Dari is the term officially recognised and promoted since 1964 by the Afghan government for the Persian language,Lazard, G.Darī  ...
and Tajik *
Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia ...
: Bosnian, Croatian, Montenegrin, and Serbian – the national varieties are structurally the same language, all constituting normative varieties of the
Shtokavian Shtokavian or Štokavian (; sh-Latn, štokavski / sh-Cyrl, italics=no, штокавски, ) is the prestige dialect of the pluricentric Serbo-Croatian language and the basis of its Serbian, Croatian, Bosnian and Montenegrin standards. ...
dialect, and hence mutually intelligible, spoken and written (if the
Latin alphabet The Latin alphabet or Roman alphabet is the collection of letters originally used by the ancient Romans to write the Latin language. Largely unaltered with the exception of extensions (such as diacritics), it used to write English and th ...
is used). For political reasons, they are sometimes considered distinct languages. Shtokavian has its own set of subdialects, leading some linguists to consider the other dialects (Kajkavian, Chakavian, and Torlakian) as separate languages, closely related to Shtokavian Serbo-Croatian (rather than being Serbo-Croatian dialects). *
Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language ***Romanian dialects, variants of the Romanian language **Romanian cuisine, traditional ...
: Moldovan – the standard forms are structurally the same language, and hence mutually intelligible. They are considered separate languages only for political reasons. Moldovan does, however, have more foreign loanwords from Russian and Ukrainian due to historical East Slavic influence on the region but not to the extent where those would affect mutual intelligibility. * Tagalog: Filipino – the national language of the Philippines, Filipino, is based almost entirely on the Luzon dialects of Tagalog.


See also

*
Sister language In historical linguistics, sister languages are cognate languages; that is, languages that descend from a common ancestral language, their so-called proto-language. Every language in a language family that descends from the same language as the ot ...
*
Dialect levelling Dialect levelling or leveling (in American English) is the process of an overall reduction in the variation or diversity of features between two or more dialects. Typically, this comes about through assimilation, mixture, and merging of certain d ...
*
Koiné language In linguistics, a koiné language, koiné dialect, or simply koiné (Ancient Greek κοινή, "common anguage) is a standard or common language or dialect that has arisen as a result of the contact, mixing, and often simplification of two or ...
*
Lexical similarity In linguistics, lexical similarity is a measure of the degree to which the word sets of two given languages are similar. A lexical similarity of 1 (or 100%) would mean a total overlap between vocabularies, whereas 0 means there are no common words. ...
*
Lingua franca A lingua franca (; ; for plurals see ), also known as a bridge language, common language, trade language, auxiliary language, vehicular language, or link language, is a language systematically used to make communication possible between groups ...
*
Multilingualism Multilingualism is the use of more than one language, either by an individual speaker or by a group of speakers. It is believed that multilingual speakers outnumber monolingual speakers in the world's population. More than half of all ...
* Non-convergent discourse


References


Further reading

* * * *


External links


Harold Schiffman, "Linguists' Definition: mutual intelligibility"
University of Pennsylvania The University of Pennsylvania (also known as Penn or UPenn) is a Private university, private research university in Philadelphia. It is the fourth-oldest institution of higher education in the United States and is ranked among the highest- ...
.
Common words between languages
{{DEFAULTSORT:Mutual Intelligibility Language varieties and styles Comparative linguistics Dialectology