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C, or c, is the third
letter Letter, letters, or literature may refer to: Characters typeface * Letter (alphabet), a character representing one or more of the sounds used in speech; any of the symbols of an alphabet. * Letterform, the graphic form of a letter of the alphabe ...
in 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 ...
, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''cee'' (pronounced ), plural ''cees''.


History

"C" comes from the same letter as "G". The
Semites Semites, Semitic peoples or Semitic cultures is an obsolete term for an ethnic, cultural or racial group.gimel Gimel is the third letter of the Semitic abjads, including Phoenician Gīml , Hebrew Gimel , Aramaic Gāmal , Syriac Gāmal , and Arabic (in alphabetical order; fifth in spelling order). Its sound value in the original Phoenician and in all d ...
. The sign is possibly adapted from an Egyptian hieroglyph for a staff sling, which may have been the meaning of the name ''gimel''. Another possibility is that it depicted a camel, the Semitic name for which was ''gamal''.
Barry B. Powell Barry Bruce Powell (born 1942) is an American classical scholar. He is the Halls-Bascom Professor of Classics Emeritus at the University of Wisconsin–Madison, author of the widely used textbook ''Classical Myth'' and many other books. Trained at ...
, a specialist in the history of writing, states "It is hard to imagine how gimel = "camel" can be derived from the picture of a camel (it may show his hump, or his head and neck!)". In the
Etruscan language Etruscan () was the language of the Etruscan civilization, in Italy, in the ancient region of Etruria (modern Tuscany, western Umbria, northern Latium, Emilia-Romagna, Veneto, Lombardy and Campania). Etruscan influenced Latin but was eventua ...
, plosive consonants had no contrastive voicing, so the
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
' Γ' (Gamma) was adopted into the
Etruscan alphabet The Etruscan alphabet was the alphabet used by the Etruscans, an ancient civilization of central and northern Italy, to write their language, from about 700 BC to sometime around 100 AD. The Etruscan alphabet derives from the Euboean alphabet u ...
to represent . Already in the
Western Greek alphabet Many local variants of the Greek alphabet were employed in ancient Greece during the archaic and early classical periods, until around 400 BC, when they were replaced by the classical 24-letter alphabet that is the standard today. All forms ...
, Gamma first took a '' form in Early Etruscan, then '' in Classical Etruscan. In Latin it eventually took the '' form in Classical Latin. In the earliest
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 the ...
inscriptions, the letters '' were used to represent the sounds and (which were not differentiated in writing). Of these, '' was used to represent or before a rounded vowel, '' before '', and '' elsewhere. During the 3rd century BC, a modified character was introduced for , and '' itself was retained for . The use of '' (and its variant '') replaced most usages of '' and ''. Hence, in the classical period and after, '' was treated as the equivalent of Greek gamma, and '' as the equivalent of kappa; this shows in the romanization of Greek words, as in 'ΚΑΔΜΟΣ', 'ΚΥΡΟΣ', and 'ΦΩΚΙΣ' came into Latin as '', '' and '', respectively. Other alphabets have letters homoglyphic to 'c' but not analogous in use and derivation, like the Cyrillic letter Es (С, с) which derives from the lunate sigma, named due to its resemblance to the crescent moon.


Later use

When the Roman alphabet was introduced into Britain, represented only , and this value of the letter has been retained in loanwords to all the
insular Celtic languages Insular Celtic languages are the group of Celtic languages of Brittany, Great Britain, Ireland, and the Isle of Man. All surviving Celtic languages are in the Insular group, including Breton, which is spoken on continental Europe in Brittany, ...
: in Welsh,
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 ...
, Gaelic, represents only . The Old English Latin-based writing system was learned from the Celts, apparently of Ireland; hence in Old English also originally represented ; the Modern English words ''kin, break, broken, thick'', and ''seek'' all come from Old English words written with : , and . However, during the course of the Old English period, before front vowels ( and ) were palatalized, having changed by the tenth century to , though was still used, as in . On the continent, meanwhile, a similar phonetic change before the same two vowels had also been going on almost all modern romance languages (for example, in
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 Ita ...
). In Vulgar Latin, became palatalized to in Italy and Dalmatia; in France and the Iberian peninsula, it became . Yet for these new sounds was still used before the letters and . The letter thus represented two distinct values. Subsequently, the Latin phoneme (spelled ) de-labialized to meaning that the various Romance languages had before front vowels. In addition,
Norman Norman or Normans may refer to: Ethnic and cultural identity * The Normans, a people partly descended from Norse Vikings who settled in the territory of Normandy in France in the 10th and 11th centuries ** People or things connected with the Norm ...
used the letter so that the sound could be represented by either or , the latter of which could represent either or depending on whether it preceded a front vowel letter or not. The convention of using both and was applied to the writing of English after the
Norman Conquest The Norman Conquest (or the Conquest) was the 11th-century invasion and occupation of England by an army made up of thousands of Norman, Breton, Flemish, and French troops, all led by the Duke of Normandy, later styled William the Con ...
, causing a considerable re-spelling of the Old English words. Thus while Old English , remained unchanged, , were now (without any change of sound) spelled , and ; even ('knight') was subsequently changed to and ('thick') changed to or . The Old English was also at length displaced by the French so that the Old English ('queen') and ('quick') became
Middle English Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English ...
and , respectively. The sound , to which Old English palatalized had advanced, also occurred in French, chiefly from Latin before . In French it was represented by the digraph , as in ''champ'' (from Latin ) and this spelling was introduced into English: the Hatton Gospels, written , have in Matt. i-iii, , for the of the Old English version whence they were copied. In these cases, the Old English gave way to , and ; on the other hand, in its new value of appeared largely in French words like and , and was also substituted for in a few Old English words, as , in early Middle English . By the end of the thirteenth century both in France and England, this sound de-affricated to ; and from that time has represented before front vowels either for
etymological Etymology () The New Oxford Dictionary of English (1998) – p. 633 "Etymology /ˌɛtɪˈmɒlədʒi/ the study of the class in words and the way their meanings have changed throughout time". is the study of the history of the form of words a ...
reasons, as in ''lance, cent'', or to avoid the ambiguity due to the "etymological" use of for , as in ''ace, mice, once, pence, defence''. Thus, to show etymology, English spelling has ''advise'', ''devise'' (instead of ''*advize'', ''*devize''), while ''advice, device, dice, ice, mice, twice'', etc., do not reflect etymology; example has extended this to ''hence, pence, defence'', etc., where there is no etymological reason for using . Former generations also wrote ''sence'' for ''sense''. Hence, today 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 ...
and
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 ide ...
have a common feature inherited from
Vulgar Latin Vulgar Latin, also known as Popular or Colloquial Latin, is the range of non-formal registers of Latin spoken from the Late Roman Republic onward. Through time, Vulgar Latin would evolve into numerous Romance languages. Its literary counterpa ...
spelling conventions where takes on either a "hard" or "soft" value depending on the following letter.


Pronunciation and use


English

In
English orthography English orthography is the writing system used to represent spoken English, allowing readers to connect the graphemes to sound and to meaning. It includes English's norms of spelling, hyphenation, capitalisation, word breaks, emphasis, and ...
, generally represents the "soft" value of before the letters (including the Latin-derived digraphs and , or the corresponding ligatures and ), , and , and a "hard" value of before any other letters or at the end of a word. However, there are a number of exceptions in English: " soccer" and " Celt" are words that have where would be expected. The "soft" may represent the sound in the digraph when this precedes a vowel, as in the words 'delicious' and 'appreciate', and also in the word "ocean" and its derivatives. The digraph most commonly represents , but can also represent (mainly in words of
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
origin) or (mainly in words of French origin). For some dialects of English, it may also represent in words like ''loch'', while other speakers pronounce the final sound as . The trigraph always represents . The digraph is often used to represent the sound after short vowels, like "wicket". C is the twelfth most frequently used letter in the English language (after E, T, A, O, I, N, S, H, R, D, and L), with a frequency of about 2.8% in words.


Other languages

In the Romance languages French,
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 ...
,
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 Ita ...
,
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, tradition ...
and
Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...
, generally has a "hard" value of and a "soft" value whose pronunciation varies by language. In French, Portuguese, Catalan and Spanish from Latin America and some places in Spain, the soft value is as it is in English. In the Spanish spoken in most of Spain, the soft is a
voiceless dental fricative The voiceless dental non-sibilant fricative is a type of consonantal sound used in some spoken languages. It is familiar to English speakers as the 'th' in ''think''. Though rather rare as a phoneme in the world's inventory of languages, it is en ...
. In
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 Ita ...
and
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, tradition ...
, the soft is . Germanic languages usually use c for Romance loans or digraphs, such as and , but the rules vary across languages.
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 E ...
uses the most, for all Romance loans and the digraph , but unlike English, does not use for native Germanic words like ''komen'', "come". German uses in the digraphs and , and the trigraph , but only by itself in unassimilated loanwords and place names.
Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish a ...
keeps soft in Romance words but changes hard to . Swedish has the same rules for soft and hard as Danish, and also uses in the digraph and the very common word ''och'', "and".
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...
,
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 gra ...
, and Icelandic are the most restrictive, replacing all cases of with or , and reserving for unassimilated loanwords and names. All
Balto-Slavic languages The Balto-Slavic languages form a branch of the Indo-European family of languages, traditionally comprising the Baltic and Slavic languages. Baltic and Slavic languages share several linguistic traits not found in any other Indo-European branc ...
that use the Latin alphabet, as well as Albanian, Hungarian,
Pashto Pashto (,; , ) is an Eastern Iranian language in the Indo-European language family. It is known in historical Persian literature as Afghani (). Spoken as a native language mostly by ethnic Pashtuns, it is one of the two official langua ...
, several Sami languages, Esperanto,
Ido Ido () is a constructed language derived from Reformed Esperanto, and similarly designed with the goal of being a universal second language for people of diverse backgrounds. To function as an effective ''international auxiliary language'', I ...
,
Interlingua Interlingua (; ISO 639 language codes ia, ina) is an international auxiliary language (IAL) developed between 1937 and 1951 by the American International Auxiliary Language Association (IALA). It ranks among the most widely used IALs and is t ...
, and
Americanist phonetic notation Americanist phonetic notation, also known as the North American Phonetic Alphabet (NAPA), the Americanist Phonetic Alphabet or the American Phonetic Alphabet (APA), is a system of phonetic notation originally developed by European and American ...
(and those aboriginal languages of North America whose practical orthography derives from it) use to represent , the voiceless alveolar or
voiceless dental sibilant affricate A voiceless alveolar affricate is a type of affricate consonant pronounced with the tip or blade of the tongue against the alveolar ridge (gum line) just behind the teeth. This refers to a class of sounds, not a single sound. There are several ty ...
. In Hanyu Pinyin, the standard romanization of
Mandarin Chinese Mandarin (; ) is a group of Chinese (Sinitic) dialects that are natively spoken across most of northern and southwestern China. The group includes the Beijing dialect, the basis of the phonology of Standard Chinese, the official language ...
, the letter represents an aspirated version of this sound, . Among non-European languages that have adopted the Latin alphabet, represents a variety of sounds.
Yup'ik The Yup'ik or Yupiaq (sg & pl) and Yupiit or Yupiat (pl), also Central Alaskan Yup'ik, Central Yup'ik, Alaskan Yup'ik ( own name ''Yup'ik'' sg ''Yupiik'' dual ''Yupiit'' pl; russian: Юпики центральной Аляски), are an I ...
, Indonesian, Malay, and a number of African languages such as
Hausa Hausa may refer to: * Hausa people, an ethnic group of West Africa * Hausa language, spoken in West Africa * Hausa Kingdoms, a historical collection of Hausa city-states * Hausa (horse) or Dongola horse, an African breed of riding horse See also ...
,
Fula Fula may refer to: *Fula people (or Fulani, Fulɓe) *Fula language (or Pulaar, Fulfulde, Fulani) **The Fula variety known as the Pulaar language **The Fula variety known as the Pular language **The Fula variety known as Maasina Fulfulde *Al-Fula ...
, and Manding share the soft Italian value of . In
Azeri Azerbaijanis (; az, Azərbaycanlılar, ), Azeris ( az, Azərilər, ), or Azerbaijani Turks ( az, Azərbaycan Türkləri, ) are a Turkic people living mainly in northwestern Iran and the Republic of Azerbaijan. They are the second-most numer ...
, Crimean Tatar,
Kurmanji Kurdish Kurmanji ( ku, کورمانجی, lit=Kurdish, translit=Kurmancî, also termed Northern Kurdish, is the northern dialect of the Kurdish languages, spoken predominantly in southeast Turkey, northwest and northeast Iran, northern Iraq, northern ...
, and Turkish stands for the voiced counterpart of this sound, the
voiced postalveolar affricate The voiced palato-alveolar sibilant affricate, voiced post-alveolar affricate or voiced domed postalveolar sibilant affricate, is a type of consonantal sound, used in some spoken languages. The sound is transcribed in the International Phonetic ...
. In Yabem and similar languages, such as Bukawa, stands for a glottal stop .
Xhosa Xhosa may refer to: * Xhosa people, a nation, and ethnic group, who live in south-central and southeasterly region of South Africa * Xhosa language, one of the 11 official languages of South Africa, principally spoken by the Xhosa people See als ...
and Zulu use this letter to represent the click . In some other African languages, such as Berber languages, is used for . In Fijian, stands for a
voiced dental fricative The voiced dental fricative is a consonant sound used in some spoken languages. It is familiar to English-speakers as the ''th'' sound in ''father''. Its symbol in the International Phonetic Alphabet is eth, or and was taken from the Old Engl ...
, while in Somali it has the value of . The letter is also used as a transliteration of Cyrillic in the Latin forms of Serbian, Macedonian, and sometimes
Ukrainian Ukrainian may refer to: * Something of, from, or related to Ukraine * Something relating to Ukrainians, an East Slavic people from Eastern Europe * Something relating to demographics of Ukraine in terms of demography and population of Ukraine * So ...
, along with the digraph .


Other systems

As a
phonetic Phonetics is a branch of linguistics that studies how humans produce and perceive sounds, or in the case of sign languages, the equivalent aspects of sign. Linguists who specialize in studying the physical properties of speech are phoneticians. ...
symbol, lowercase is 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 ...
(IPA) and
X-SAMPA The Extended Speech Assessment Methods Phonetic Alphabet (X-SAMPA) is a variant of SAMPA developed in 1995 by John C. Wells, professor of phonetics at University College London. It is designed to unify the individual language SAMPA alphabets, a ...
symbol for the
voiceless palatal plosive The voiceless palatal plosive or stop is a type of consonantal sound used in some vocal languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is c. If distinction is neces ...
, and capital is the X-SAMPA symbol for the
voiceless palatal fricative The voiceless palatal fricative is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is C. It is the non-sibilant equi ...
.


Digraphs

There are several common digraphs with , the most common being , which in some languages (such as
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 ...
) is far more common than alone. takes various values in other languages. As in English, , with the value , is often used after short vowels in other
Germanic languages The Germanic languages are a branch of the Indo-European language family spoken natively by a population of about 515 million people mainly in Europe, North America, Oceania and Southern Africa. The most widely spoken Germanic language, E ...
such as German 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 ...
(other Germanic languages, such as Dutch and
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...
, use instead). The digraph is found in Polish and in Hungarian, representing and respectively. The digraph represents in Old English, Italian, and a few languages related to Italian (where this only happens before front vowels, while otherwise it represents ). The trigraph represents in German.


Related characters


Ancestors, descendants and siblings

*𐤂 : Semitic letter
Gimel Gimel is the third letter of the Semitic abjads, including Phoenician Gīml , Hebrew Gimel , Aramaic Gāmal , Syriac Gāmal , and Arabic (in alphabetical order; fifth in spelling order). Its sound value in the original Phoenician and in all d ...
, from which the following symbols originally derive ** :
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
letter Gamma, from which C derives ***G g : Latin letter G, which is derived from Latin C ****Ȝ ȝ : Latin letter Ȝ, which is derived from Latin G * Phonetic alphabet symbols related to C: ** : Small c with curl **ʗ : Stretched c **𝼏 : Stretched c with curl - Used by Douglas Beach for a
nasal click Nasal clicks are click consonants pronounced with nasal airflow. All click types ( alveolar , dental , lateral , palatal , retroflex , and labial ) have nasal variants, and these are attested in four or five phonations: voiced, voiceless, a ...
in his phonetic description of
Khoekhoe Khoekhoen (singular Khoekhoe) (or Khoikhoi in the former orthography; formerly also '' Hottentots''"Hottentot, n. and adj." ''OED Online'', Oxford University Press, March 2018, www.oed.com/view/Entry/88829. Accessed 13 May 2018. Citing G. S. ...
**𝼝 : Small letter c with retroflex hook - Para-IPA version of the IPA retroflex tʂ **ꟲ : Modifier letter capital c - Used to mark tone for the Chatino orthography in Oaxaca, Mexico; Used as a generic transcription for a falling tone; Used in para- IPA notation *
Unicode has subscripted and superscripted versions of a number of characters including a full set of Arabic numerals. These characters allow any polynomial, chemical and certain other equations to be represented in plain text without using any ...
: Modifier letter small c *
Unicode has subscripted and superscripted versions of a number of characters including a full set of Arabic numerals. These characters allow any polynomial, chemical and certain other equations to be represented in plain text without using any ...
: Modifier letter small c with curl *ᴄ : Small capital c is used in the
Uralic Phonetic Alphabet The Uralic Phonetic Alphabet (UPA) or Finno-Ugric transcription system is a phonetic transcription or notational system used predominantly for the transcription and reconstruction of Uralic languages. It was first published in 1901 by Eemil Nes ...
. *Ꞔ ꞔ : C with palatal hook, used for writing
Mandarin Chinese Mandarin (; ) is a group of Chinese (Sinitic) dialects that are natively spoken across most of northern and southwestern China. The group includes the Beijing dialect, the basis of the phonology of Standard Chinese, the official language ...
using the early draft version of
pinyin Hanyu Pinyin (), often shortened to just pinyin, is the official romanization system for Standard Chinese, Standard Mandarin Chinese in China, and to some extent, in Singapore and Malaysia. It is often used to teach Mandarin, normally writte ...
romanization during the mid-1950s Add to C with diacritics *C with
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 ''diacriti ...
s: Ć ć Ĉ ĉ Č č Ċ ċ Ḉ ḉ Ƈ ƈ C̈ c̈ Ȼ ȼ Ç ç Ꞓ ꞓ *Ↄ ↄ : Claudian letters


Derived ligatures, abbreviations, signs and symbols

*© :
copyright symbol The copyright symbol, or copyright sign, (a circled capital letter C for copyright), is the symbol used in copyright notices for works other than sound recordings. 17 U.S.C. The use of the symbol is described by the Universal Copyright Conv ...
*℃ :
degree Celsius Degree may refer to: As a unit of measurement * Degree (angle), a unit of angle measurement ** Degree of geographical latitude ** Degree of geographical longitude * Degree symbol (°), a notation used in science, engineering, and mathematics ...
*¢ : cent *₡ :
colón (currency) The colón (₡) refers to two Central American currencies: * the Costa Rican colón (CRC), used in Costa Rica since 1896 * the Salvadoran colón (SVC), used in El Salvador from 1892 until 2001, when it was replaced by the American dollar Symbol ...
*₢ : Brazilian cruzeiro (currency) *₵ : Ghana cedi (currency) *₠ :
European Currency Unit The European Currency Unit (, ; , ECU, or XEU) was a unit of account used by the European Economic Community and composed of a basket of member country currencies. The ECU came in to operation on 13 March 1979 and was assigned the ISO 42 ...
CE *\mathbb :
blackboard bold Blackboard bold is a typeface style that is often used for certain symbols in mathematical texts, in which certain lines of the symbol (usually vertical or near-vertical lines) are doubled. The symbols usually denote number sets. One way of pro ...
C, denoting the
complex number In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted , called the imaginary unit and satisfying the equation i^= -1; every complex number can be expressed in the fo ...
s *ℭ : blackletter C *Ꜿ ꜿ :
Medieval In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
abbreviation for
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 the ...
syllables con- and com-,
Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...
-us and -os


Code points

These are the
code point In character encoding terminology, a code point, codepoint or code position is a numerical value that maps to a specific character. Code points usually represent a single grapheme—usually a letter, digit, punctuation mark, or whitespace—but ...
s for the forms of the letter in various systems : 1 In Unicode, C is also encoded in various font styles for mathematical purposes; see
Mathematical Alphanumeric Symbols Mathematical Alphanumeric Symbols is a Unicode block comprising styled forms of Latin and Greek letters and decimal digits that enable mathematicians to denote different notions with different letter styles. The letters in various fonts ofte ...
.


Other representations


Use as a number

In the hexadecimal (base 16) numbering system, C is a number that corresponds to the number 12 in decimal (base 10) counting.


See also

* Hard and soft C *
Speed of light The speed of light in vacuum, commonly denoted , is a universal physical constant that is important in many areas of physics. The speed of light is exactly equal to ). According to the special theory of relativity, is the upper limit ...
, ''c''


References


External links

* * * {{Latin script, C} ISO basic Latin letters