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A nasal vowel is a
vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (len ...
that is produced with a lowering of the
soft palate The soft palate (also known as the velum, palatal velum, or muscular palate) is, in mammals, the soft tissue constituting the back of the roof of the mouth. The soft palate is part of the palate of the mouth; the other part is the hard palat ...
(or velum) so that the air flow escapes through the
nose A nose is a protuberance in vertebrates that houses the nostrils, or nares, which receive and expel air for respiration alongside the mouth. Behind the nose are the olfactory mucosa and the sinuses. Behind the nasal cavity, air next passe ...
and the
mouth In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...
simultaneously, as in the
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 Franc ...
vowel or Amoy []. By contrast, oral vowels are produced without nasalization. Nasalized vowels are vowels under the influence of neighbouring sounds. For instance, the [] of the word ''hand'' is affected by the following nasal consonant. In most languages, vowels adjacent to
nasal consonant In phonetics, a nasal, also called a nasal occlusive or nasal stop in contrast with an oral stop or nasalized consonant, is an occlusive consonant produced with a lowered velum, allowing air to escape freely through the nose. The vast major ...
s are produced partially or fully with a lowered velum in a natural process of
assimilation Assimilation may refer to: Culture * Cultural assimilation, the process whereby a minority group gradually adapts to the customs and attitudes of the prevailing culture and customs ** Language shift, also known as language assimilation, the prog ...
and are therefore technically nasal, but few speakers would notice. That is the case in English: vowels preceding nasal consonants are nasalized, but there is no phonemic distinction between nasal and oral vowels, and all vowels are considered phonemically oral. The nasality of nasal vowels, however, is a distinctive feature of certain languages. In other words, a language may contrast oral vowels and nasalized vowels phonemically. Linguists make use of
minimal pair In phonology, minimal pairs are pairs of words or phrases in a particular language, spoken or signed, that differ in only one phonological element, such as a phoneme, toneme or chroneme, and have distinct meanings. They are used to demonstrate ...
s to decide whether or not the nasality is of linguistic importance. In French, for instance, nasal vowels are distinct from oral vowels, and words can differ by the vowel quality. The words ''beau'' "beautiful" and ''bon'' "good" are a
minimal pair In phonology, minimal pairs are pairs of words or phrases in a particular language, spoken or signed, that differ in only one phonological element, such as a phoneme, toneme or chroneme, and have distinct meanings. They are used to demonstrate ...
that contrasts primarily the vowel nasalization even if the /ɔ̃/ from ''bon'' is slightly more
open Open or OPEN may refer to: Music * Open (band), Australian pop/rock band * The Open (band), English indie rock band * Open (Blues Image album), ''Open'' (Blues Image album), 1969 * Open (Gotthard album), ''Open'' (Gotthard album), 1999 * Open (C ...
. Portuguese allows nasal
diphthong A diphthong ( ; , ), also known as a gliding vowel, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of the speech ...
s, which contrast with their oral counterparts, like the pair ''mau'' "bad" and ''mão'' "hand". Although there are French
loanword A loanword (also loan word or loan-word) is a word at least partly assimilated from one language (the donor language) into another language. This is in contrast to cognates, which are words in two or more languages that are similar because ...
s into English with nasal vowels like ''croissant'' [], there is no expectation that an English-speaker would nasalize the vowels to the same extent as French-speakers or Portuguese-speakers. Likewise, pronunciation keys in English dictionaries do not always indicate nasalization of French or Portuguese loanwords.


Influence on vowel height

Nasalization In phonetics, nasalization (or nasalisation) is the production of a sound while the velum is lowered, so that some air escapes through the nose during the production of the sound by the mouth. An archetypal nasal sound is . In the Internation ...
as a result of the
assimilation Assimilation may refer to: Culture * Cultural assimilation, the process whereby a minority group gradually adapts to the customs and attitudes of the prevailing culture and customs ** Language shift, also known as language assimilation, the prog ...
of a
nasal consonant In phonetics, a nasal, also called a nasal occlusive or nasal stop in contrast with an oral stop or nasalized consonant, is an occlusive consonant produced with a lowered velum, allowing air to escape freely through the nose. The vast major ...
tends to cause a raising of
vowel height A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (le ...
; phonemically distinctive nasalization tends to lower the vowel. According to a different assessment, high vowels do tend to be lowered, but low vowels tend to be raised instead. In most languages, vowels of all heights are nasalized indiscriminately, but preference occurs in some language, such as for high vowels in
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and low vowels in Thai.


Degree of nasalization

A few languages, such as Palantla Chinantec, contrast lightly nasalized and heavily nasalized vowels. They may be contrasted in print by doubling the IPA diacritic for nasalization: vs . Bickford & Floyd (2006) combine the tilde with the ogonek: vs . (The ogonek is sometimes used in an otherwise IPA transcription to avoid conflict with tone diacritics above the vowels.)


Origin

Rodney Sampson described a three-stage historical account, explaining the origin of nasal vowels in modern
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 Franc ...
. The notation of Terry and Webb will be used below, where V, N, and Ṽ (with a tilde above) represent oral vowel, nasal consonant, and nasal vowel, respectively.Terry, Kristen Kennedy & Webb, Eric Russell. (2011). Modeling the emergence of a typological anomaly: Vowel nasalization in French. In ''Annual Meeting of the Berkeley Linguistics Society, 37''(1), 155–169. In the
Old French Old French (, , ; Modern French: ) was the language spoken in most of the northern half of France from approximately the 8th to the 14th centuries. Rather than a unified language, Old French was a linkage of Romance dialects, mutually intel ...
period, vowels become nasalized under the regressive assimilation, as VN > ṼN. In the
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 ...
period, the realization of the nasal consonant became variable, as VN > Ṽ(N). As the language evolves into its modern form, the consonant is no longer realized, as ṼN > Ṽ.


Orthography

Languages written with
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 ...
may indicate nasal vowels by a trailing silent ''n'' or ''m'', as is the case in French, Portuguese, Lombard (central classic orthography), Bamana, Breton, and
Yoruba The Yoruba people (, , ) are a West African ethnic group that mainly inhabit parts of Nigeria, Benin, and Togo. The areas of these countries primarily inhabited by Yoruba are often collectively referred to as Yorubaland. The Yoruba constitute ...
. In other cases, they are indicated by
diacritic A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek (, "distinguishing"), from (, "to distinguish"). The word ''diacrit ...
s. In the
International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standardized representation ...
, nasal vowels are denoted by a
tilde The tilde () or , is a grapheme with several uses. The name of the character came into English from Spanish, which in turn came from the Latin '' titulus'', meaning "title" or "superscription". Its primary use is as a diacritic (accent) i ...
over the symbol for the vowel. The same practice can be found in Portuguese marking with a
tilde The tilde () or , is a grapheme with several uses. The name of the character came into English from Spanish, which in turn came from the Latin '' titulus'', meaning "title" or "superscription". Its primary use is as a diacritic (accent) i ...
in diphthongs (e.g. ''põe'') and for words ending in /ɐ̃/ (e.g. ''manhã'', ''irmã''). While the tilde is also used for this purpose in Paraguayan Guaraní, phonemic nasality is indicated by a diaeresis ( ¨ ) in the standardized orthographies of most varieties of Tupí-Guaraní spoken in
Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...
. Polish,
Navajo The Navajo (; British English: Navaho; nv, Diné or ') are a Native Americans in the United States, Native American people of the Southwestern United States. With more than 399,494 enrolled tribal members , the Navajo Nation is the largest fe ...
, and
Elfdalian Elfdalian or Övdalian ( or , pronounced in Elfdalian, or in Swedish) is a North Germanic language spoken by up to 3,000 people who live or have grown up in the locality of Älvdalen ('), which is located in the southeastern part of Älvd ...
use a hook under the letter, called an ogonek, as in ''ą, ę''. The
Pe̍h-ōe-jī (; ; ), also sometimes known as the Church Romanization, is an orthography used to write variants of Southern Min Chinese, particularly Taiwanese and Amoy Hokkien. Developed by Western missionaries working among the Chinese diaspora in Sout ...
romanization of
Taiwanese Hokkien Taiwanese Hokkien () (; Tâi-lô: ''Tâi-uân-uē''), also known as Taigi/Taigu (; Pe̍h-ōe-jī/ Tâi-lô: ''Tâi-gí / Tâi-gú''), Taiwanese, Taiwanese Minnan, Hoklo and Holo, is a variety of the Hokkien language spoken natively by about ...
and Amoy uses a superscript ''n'' (''aⁿ'', ''eⁿ'', ...). The
Brahmic scripts The Brahmic scripts, also known as Indic scripts, are a family of abugida writing systems. They are used throughout the Indian subcontinent, Southeast Asia and parts of East Asia. They are descended from the Brahmi script of ancient In ...
used for most Indic languages mark nasalization with the anusvāra (ं, homophonically used for
homorganic In phonetics, a homorganic consonant (from ''homo-'' "same" and ''organ'' "(speech) organ") is a consonant sound that is articulated in the same place of articulation as another. For example, , and are homorganic consonants of one another sinc ...
nasalization in a consonant cluster following the vowel) or the anunāsika (ँ) diacritic (and its regional variants). Nasalization in Nastaliq-based Arabic scripts of languages in
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
, such as
Punjabi Punjabi, or Panjabi, most often refers to: * Something of, from, or related to Punjab, a region in India and Pakistan * Punjabi language * Punjabi people * Punjabi dialects and languages Punjabi may also refer to: * Punjabi (horse), a British Th ...
, Saraiki and
Urdu Urdu (;"Urdu"
'' nūn () or the letter marked with the ''maghnūna'' diacritic: respectively (always occurring word finally) or , called " nūn ghunna". Nasalized vowels occur in
Classical Arabic Classical Arabic ( ar, links=no, ٱلْعَرَبِيَّةُ ٱلْفُصْحَىٰ, al-ʿarabīyah al-fuṣḥā) or Quranic Arabic is the standardized literary form of Arabic used from the 7th century and throughout the Middle Ages, most notab ...
but not in contemporary speech or
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 re ...
. There is no orthographic way to denote the nasalization, but it is systematically taught as part of the essential rules of '' tajwid'', used to read the
Qur'an The Quran (, ; Standard Arabic: , Quranic Arabic: , , 'the recitation'), also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation from God. It is organized in 114 chapters (pl.: , si ...
. Nasalization occurs in recitation, usually when a final nūn is followed by a yāʾ ().


Languages

The following languages use phonemic nasal vowels:


See also

*
Nasalization In phonetics, nasalization (or nasalisation) is the production of a sound while the velum is lowered, so that some air escapes through the nose during the production of the sound by the mouth. An archetypal nasal sound is . In the Internation ...
*
Vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (len ...
**
front vowel A front vowel is a class of vowel sounds used in some spoken languages, its defining characteristic being that the highest point of the tongue is positioned as far forward as possible in the mouth without creating a constriction that would otherw ...
**
back vowel A back vowel is any in a class of vowel sound used in spoken languages. The defining characteristic of a back vowel is that the highest point of the tongue is positioned relatively back in the mouth without creating a constriction that would be c ...


References


Further reading

*de Medeiros, Beatriz Raposo. (2011). Nasal Coda and Vowel Nasality in Brazilian Portuguese. In S. M. Alvord (Ed.), ''Selected Proceedings of the 5th Conference on Laboratory Approaches to Romance Phonology'' (pp. 33–45). *Hajek, John & Maeda, Shinji. (2000). Investigating Universals of Sound Change: the Effect of Vowel Height and Duration on the Development of Distinctive Nasalization. ''Papers in Laboratory Phonology V: Acquisition and the lexicon'' (pp. 52–69). *Jeong, Sunwoo. (2012). Directional asymmetry in nasalization: Aperceptual account. ''Studies in Phonetics, Phonology and Morphology, 18''(3), 437–469. *Michaud, A., Jacques, G., & Rankin, R. L. (2012). Historical transfer of nasality between consonantal onset and vowel: from C to V or from V to C? ''Diachronica, 29''(2), 201–230. *Sampson, Rodney. (1999). ''Nasal Vowel Evolution in Romance''. Oxford University Press. {{DEFAULTSORT:Nasal Vowel Vowels
Vowel A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness and also in quantity (len ...