The lists and tables below summarize and compare the letter inventories of some of the Latin-script alphabets. In this article, the scope of the word "alphabet" is broadened to include letters with tone marks, and other diacritics used to represent a wide range of orthographic traditions, without regard to whether or how they are sequenced in their alphabet or the table.
Parentheses indicate characters not used in modern standard orthographies of the languages, but used in obsolete and/or dialectal forms.
Among alphabets for natural languages the English, [36] Indonesian, and Malay alphabets only use the 26 letters in both cases.
Among alphabets for constructed languages the Ido and Interlingua alphabets only use the 26 letters, while Toki Pona uses a 14-letter subset.
Among alphabets for natural languages the Afrikaans, [54] Aromanian, Azerbaijani (some dialects) [53] , Basque, [4] , Celtic British, Catalan, [6] Cornish, Czech, [8] Danish, [9] Dutch, [10] Emilian-Romagnol, Filipino, [11] Finnish, French, [12] , German, [13] Greenlandic, Hungarian, [15] Javanese, Karakalpak, [23] Kurdish, Modern Latin, Luxembourgish, Norwegian, [9] Oromo [65] , Papiamento [63] , Polish [22] , Portuguese, Quechua, Rhaeto-Romance, Romanian, Slovak, [24] Spanish, [25] Sundanese, Swedish, Tswana, [52] Uyghur, Venda, [51] Võro, Walloon, [27] West Frisian, Xhosa, Zhuang, Zulu alphabets include all 26 letters, at least in their largest version.
Among alphabets for constructed languages the Interglossa and Occidental alphabets include all 26 letters.
The International Phonetic Alphabet (IPA) includes all 26 letters in their lowercase forms, although g is always single-storey ( ɡ ) in the IPA and never double-storey ( ).
This list is based on official definitions of each alphabet. However, excluded letters might occur in non-integrated loan words and place names.
Alphabet | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | # |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Classical Latin [2] | A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | Q | R | S | T | V | X | Y | Z | 23 | |||
Albanian [3] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 25 | |
Anglo-Saxon | A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | Q | R | S | T | U | X | Y | Z | 23 | |||
Arbëresh | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 25 | |
Asturian | A | B | C | D | E | F | G | H | I | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 23 | |||
Azerbaijani [53] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 25 | |
Bambara [39] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 23 | |||
Belarusian [5] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Berber | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | Q | R | S | T | U | W | X | Y | Z | 24 | ||
Bislama [45] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | 22 | ||||
Breton | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | ||
Chamorro [43] | A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | R | S | T | U | Y | 20 | ||||||
Chewa | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | ||
Corsican [31] | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | Z | 22 | ||||
Crimean Tatar | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | Y | Z | 24 | ||
Croatian [7] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Cypriot Arabic [59] | A | B | C | D | E | F | G | I | J | K | L | M | N | O | P | R | S | T | U | V | W | X | Y | Z | 24 | ||
Dakelh [61] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 22 | ||
Dakota | A | B | C | D | E | G | H | I | J | K | M | N | O | P | S | T | U | W | Y | Z | 20 | ||||||
Dalecarlian | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | 22 | ||||
Dinka [40] | A | B | C | D | E | G | H | I | J | K | L | M | N | O | P | R | T | U | W | Y | 20 | ||||||
Esperanto | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Estonian | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 21 | |||||
Extremaduran | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 24 | ||
Fala | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | X | Z | 23 | |||
Faroese | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | 21 | |||||
Filipino Abakada [11] | A | B | D | E | G | H | I | K | L | M | N | O | P | R | S | T | U | W | Y | 19 | |||||||
Friulian | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | R | S | T | U | V | Z | 21 | |||||
Fula [41] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | X | Y | 23 | |||
Gagauz | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Galician [33] | A | B | C | D | E | F | G | H | I | L | M | N | O | P | Q | R | S | T | U | V | X | Z | 22 | ||||
Gilbertese | A | B | E | I | K | M | N | O | R | T | U | W | 12 | ||||||||||||||
Glosa | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z | 25 | |
Traditional Greenlandic | A | E | F | G | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | 18 | ||||||||
Guaraní [14] | A | B | C | D | E | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | 21 | |||||
Gwich'in [67] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | R | S | T | U | V | W | Y | Z | 23 | |||
Haitian | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | X | Y | Z | 25 | |
Hän | A | B | C | D | E | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 22 | ||||
Hausa [30] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 23 | |||
Hawaiian | A | E | H | I | K | L | M | N | O | P | U | W | 12 | ||||||||||||||
Icelandic | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | X | Y | 22 | ||||
Igbo [42] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | ||
Inari Sami | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Irish [16] | A | B | C | D | E | F | G | H | I | L | M | N | O | P | R | S | T | U | V | Z | 20 | ||||||
Italian [17] | A | B | C | D | E | F | G | H | I | L | M | N | O | P | Q | R | S | T | U | V | Z | 21 | |||||
Karelian | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Kashubian | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 23 | |||
Kazakh [38] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | Y | Z | 23 | |||
Khasi | A | B | D | E | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | 20 | ||||||
Latvian [18] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | (Y) | Z | 23 | |||
Lithuanian [19] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Livonian [46] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | (Y) | Z | 23 | ||||
Lojban | A | B | C | D | E | F | G | I | J | K | L | M | N | O | P | R | S | T | U | V | X | Y | Z | 23 | |||
Lule Sami [60] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | 20 | ||||||
Malagasy | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | V | Y | Z | 21 | |||||
Maltese [20] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z | 24 | ||
Manx Gaelic | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | Y | 24 | ||
Māori [34] | A | E | G | H | I | K | M | N | O | P | R | T | U | W | 14 | ||||||||||||
Marshallese [47] | A | B | D | E | I | J | K | L | M | N | O | P | R | T | U | W | Y | 17 | |||||||||
Massachusett [62] | A | C | E | H | K | M | N | P | Q | S | T | U | W | Y | 14 | ||||||||||||
Mirandese | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | X | Y | Z | 23 | |||
Mohawk | A | E | H | I | K | N | O | R | S | T | W | Y | 12 | ||||||||||||||
Na'vi [57] [2] | A | E | F | G | H | I | K | L | M | N | O | P | R | S | T | U | V | W | X | Y | Z | 21 | |||||
Navajo | A | B | C | D | E | G | H | I | J | K | L | M | N | O | S | T | W | X | Y | Z | 20 | ||||||
Northern Sami | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Nuxalk | A | C | H | I | K | L | M | N | P | Q | S | T | U | W | X | Y | 16 | ||||||||||
Occitan | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | X | Z | 23 | |||
Pan-Nigerian | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | ||
Piedmontese | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | Z | 22 | ||||
Pinyin [32] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | W | X | Y | Z | 25 | |
Romani [29] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | X | Z | 23 | |||
Rotokas | A | E | G | I | K | O | P | R | S | T | U | V | 12 | ||||||||||||||
Samoan | A | E | F | G | H | I | K | L | M | N | O | P | R | S | T | U | V | 17 | |||||||||
Sardinian | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 24 | ||
Scottish Gaelic | A | B | C | D | E | F | G | H | I | L | M | N | O | P | R | S | T | U | 18 | ||||||||
Serbian [7] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Shona | A | B | C | D | E | F | G | H | I | J | K | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | |||
Sicilian | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | Z | 22 | ||||
Skolt Sami | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Slovenian | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Somali | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | Q | R | S | T | U | W | X | Y | 23 | |||
Sorbian [64] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 23 | |||
Southern Sami | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | 21 | |||||
Swahili | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z | 24 | ||
Tahitian | A | E | F | H | I | M | N | O | P | R | T | U | V | 13 | |||||||||||||
Tetum | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | X | Z | 23 | |||
Toki Pona | A | E | I | J | K | L | M | N | O | P | S | T | U | W | 14 | ||||||||||||
Tongan | A | E | F | G | H | I | K | L | M | N | O | P | S | T | U | V | 16 | ||||||||||
Turkish | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | Z | 23 | |||
Turkmen [55] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | Z | 22 | ||||
Ulithian [49] | A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | R | S | T | U | W | Y | 21 | |||||
Ume Sami | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Y | 21 | |||||
Uzbek [25] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | X | Y | Z | 25 | |
Veps | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | Z | 22 | ||||
Vietnamese [26] | A | B | C | D | E | G | H | I | K | L | M | N | O | P | Q | R | S | T | U | V | X | Y | 22 | ||||
Volapük | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | X | Y | Z | 24 | ||
Welsh [28] | A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | R | S | T | U | W | Y | 21 | |||||
Wolof | A | B | C | D | E | F | G | I | J | K | L | M | N | O | P | Q | R | S | T | U | W | X | Y | 24 | |||
Yapese [50] | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | W | Y | 23 | |||
Yoruba [44] | A | B | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | W | Y | 21 | |||||
Zuni [66] | A | B | C | D | E | H | I | K | L | M | N | O | P | S | T | U | W | Y | 18 | ||||||||
count | 100 | 89 | 71 | 88 | 99 | 84 | 92 | 93 | 99 | 77 | 84 | 93 | 98 | 99 | 98 | 94 | 32 | 93 | 94 | 99 | 96 | 68 | 45 | 31 | 68 | 65 |
The I is used in two distinct versions in Turkic languages: dotless (I ı) and dotted (İ i). They are considered different letters, and case conversion must take care to preserve the distinction. Irish traditionally does not write the dot, or tittle, over the small letter i, but the language makes no distinction here if a dot is displayed, so no specific encoding and special case conversion rule is needed as it is for Turkic alphabets.
The chart above lists a variety of alphabets that do not officially contain all 26 letters of the ISO basic Latin alphabet. In this list, one letter is used by all of them: A. For each of the 26 basic ISO Latin alphabet letters, the number of alphabets in the list above using it is as follows:
Letter | A | E | I | N | T | M | O | U | P | S | H | R | G | L | B | D | F | K | J | C | Y | V | Z | W | Q | X |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alphabets | 100 | 99 | 99 | 99 | 99 | 98 | 97 | 96 | 94 | 94 | 93 | 93 | 92 | 92 | 89 | 88 | 84 | 84 | 77 | 71 | 69 | 68 | 64 | 45 | 32 | 31 |
Some languages have extended the Latin alphabet with ligatures, modified letters, or digraphs. These symbols are listed below.
Additional base letters | Æ | Ɑ | Ꞵ | Ð | Ǝ | Ə | Ɛ | Ɣ | I | Ɩ | Ŋ | Œ | Ɔ | Ꞷ | Ʊ | K' | ẞ | Ʃ | Þ | Ʋ | Ƿ | Ȝ | Ʒ | ʔ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
æ | ɑ | ꞵ | ð | ǝ | ə | ɛ | ɣ | ı | ɩ | ŋ | œ | ɔ | ꞷ | ʊ | ĸ | ß | ʃ | þ | ʋ | ƿ | ȝ | ʒ | ʔ | |
Anglo-Saxon | Æ | Ð | Þ | Ƿ | Ȝ | |||||||||||||||||||
Azeri [53] | Ə | I | ||||||||||||||||||||||
Bambara [39] | Ɛ | Ŋ | Ɔ | |||||||||||||||||||||
Northern Berber | Ɛ | Ɣ | ||||||||||||||||||||||
Southern Berber | Ǝ | Ɣ | Ŋ | |||||||||||||||||||||
Crimean Tatar | I | |||||||||||||||||||||||
Dalecarlian | Ð | |||||||||||||||||||||||
Danish [9] Norwegian [9] Southern Sami (Norway) | Æ | |||||||||||||||||||||||
Dinka | Ɛ | Ɣ | Ŋ | Ɔ | ||||||||||||||||||||
Faroese | Æ | Ð | ||||||||||||||||||||||
Greenlandic | Æ | (ĸ) | ||||||||||||||||||||||
German [13] | ß | |||||||||||||||||||||||
Icelandic Norn | Æ | Ð | Þ | |||||||||||||||||||||
Celtic British English [36] French [12] Latin [2] | Æ | Œ | ||||||||||||||||||||||
Inari Sami Northern Sami Lule Sami [60] Fula [41] Alphabet of Mauritania Alphabet of Senegal | Ŋ | |||||||||||||||||||||||
Skolt Sami | Ŋ | Ʒ | ||||||||||||||||||||||
Pan-Nigerian | Ǝ | |||||||||||||||||||||||
Turkish Kazakh [38] | I | |||||||||||||||||||||||
Alphabet of Cameroon | Æ | Ɑ | Ə | Ɛ | Ŋ | Œ | Ɔ | |||||||||||||||||
Alphabet of Benin | Ǝ | Ɛ | Ɣ | Ŋ | Ɔ | Ʊ | Ʋ | |||||||||||||||||
Alphabet of Burkina Faso | Ǝ | Ɛ | Ɩ | Ŋ | Ɔ | Ʋ | ||||||||||||||||||
Alphabet of Chad [68] | Ə | Ɛ | Ŋ | Ɔ | ||||||||||||||||||||
Alphabet of Côte d'Ivoire | Ɛ | Ɩ | Ŋ | Ɔ | Ʊ | Ɂ | ||||||||||||||||||
Scientific Alphabet of Gabon | Ꞵ | Ð | Ǝ | Ɛ | Ɣ | Ŋ | Ɔ | Ʃ | Ʒ | Ɂ | ||||||||||||||
Alphabet of Mali | Ǝ | Ɛ | Ɣ | Ŋ | Ɔ | Ɂ | ||||||||||||||||||
Alphabet of Niger | Ǝ | Ɣ | Ŋ | |||||||||||||||||||||
Alphabet of Zaïre | Ɛ | Ɔ | ||||||||||||||||||||||
African reference alphabet | Ɑ | Ǝ | Ɛ | Ɣ | Ɩ | Ŋ | Ɔ | Ꞷ | Ʃ | Ʋ | Ʒ | Ɂ | ||||||||||||
Count | 7 | 2 | 1 | 5 | 8 | 3 | 12 | 8 | 3 | 3 | 14 | 2 | 11 | 1 | 2 | 1 | 1 | 2 | 2 | 3 | 1 | 1 | 3 | 4 |
The tables below are a work in progress. Eventually, table cells with light blue shading will indicate letter forms that do not constitute distinct letters in their associated alphabets. Please help with this task if you have the required linguistic knowledge and technical editing skill.
For the order in which the characters are sorted in each alphabet, see collating sequence.
A diacritic is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek διακριτικός, from διακρίνω. The word diacritic is a noun, though it is sometimes used in an attributive sense, whereas diacritical is only an adjective. Some diacritics, such as the acute ⟨ó⟩, grave ⟨ò⟩, and circumflex ⟨ô⟩, are often called accents. Diacritics may appear above or below a letter or in some other position such as within the letter or between two letters.
The Danish and Norwegian alphabet is the set of symbols, forming a variant of the Latin alphabet, used for writing the Danish and Norwegian languages. It has consisted of the following 29 letters since 1917 (Norwegian) and 1948 (Danish):
Finnish orthography is based on the Latin script, and uses an alphabet derived from the Swedish alphabet, officially comprising twenty-nine letters but also including two additional letters found in some loanwords. The Finnish orthography strives to represent all morphemes phonologically and, roughly speaking, the sound value of each letter tends to correspond with its value in the International Phonetic Alphabet (IPA) – although some discrepancies do exist.
Welsh orthography uses 29 letters of the Latin script to write native Welsh words as well as established loanwords.
A caronKARR-ən. or háček, is a diacritic mark placed over certain letters in the orthography of some languages, to indicate a change of the related letter's pronunciation. Typographers tend to use the term caron, while linguists prefer the Czech word háček.
Filipinoorthography specifies the correct use of the writing system of the Filipino language, the national and co-official language of the Philippines.
Modern English is written with a Latin-script alphabet consisting of 26 letters, with each having both uppercase and lowercase forms. The word alphabet is a compound of alpha and beta, the names of the first two letters in the Greek alphabet. Old English was first written down using the Latin alphabet during the 7th century. During the centuries that followed, various letters entered or fell out of use. By the 16th century, the present set of 26 letters had largely stabilised:
The Polish alphabet is the script of the Polish language, the basis for the Polish system of orthography. It is based on the Latin alphabet but includes certain letters (9) with diacritics: the acute accent – kreska: ⟨ć, ń, ó, ś, ź⟩; the overdot – kropka: ⟨ż⟩; the tail or ogonek – ⟨ą, ę⟩; and the stroke – ⟨ł⟩. ⟨q⟩, ⟨v⟩, and ⟨x⟩, which are used only in foreign words, are usually absent from the Polish alphabet. Additionally, before the standardization of Polish spelling, ⟨qu⟩ was sometimes used in place of ⟨kw⟩, and ⟨x⟩ in place of ⟨ks⟩.
Alphabetical order is a system whereby character strings are placed in order based on the position of the characters in the conventional ordering of an alphabet. It is one of the methods of collation. In mathematics, a lexicographical order is the generalization of the alphabetical order to other data types, such as sequences of numbers or other ordered mathematical objects.
A digraph or digram is a pair of characters used in the orthography of a language to write either a single phoneme, or a sequence of phonemes that does not correspond to the normal values of the two characters combined.
Italian orthography uses the Latin alphabet to write the Italian language. This article focuses on the writing of Standard Italian, based historically on the Florentine variety of Tuscan.
Lithuanian orthography employs a Latin-script alphabet of 32 letters, two of which denote sounds not native to the Lithuanian language. Additionally, it uses five digraphs.
French orthography encompasses the spelling and punctuation of the French language. It is based on a combination of phonemic and historical principles. The spelling of words is largely based on the pronunciation of Old French c. 1100–1200 AD, and has stayed more or less the same since then, despite enormous changes to the pronunciation of the language in the intervening years. Even in the late 17th century, with the publication of the first French dictionary by the Académie française, there were attempts to reform French orthography.
Polish orthography is the system of writing the Polish language. The language is written using the Polish alphabet, which derives from the Latin alphabet, but includes some additional letters with diacritics. The orthography is mostly phonetic, or rather phonemic—the written letters correspond in a consistent manner to the sounds, or rather the phonemes, of spoken Polish. For detailed information about the system of phonemes, see Polish phonology.
Portuguese orthography is based on the Latin alphabet and makes use of the acute accent, the circumflex accent, the grave accent, the tilde, and the cedilla to denote stress, vowel height, nasalization, and other sound changes. The diaeresis was abolished by the last Orthography Agreement. Accented letters and digraphs are not counted as separate characters for collation purposes.
The modern Latvian orthography is based on Latin script adapted to phonetic principles, following the pronunciation of the language. The standard alphabet consists of 33 letters – 22 unmodified Latin letters and 11 modified by diacritics. It was developed by the Knowledge Commission of the Riga Latvian Association in 1908, and was approved the same year by the orthography commission under the leadership of Kārlis Mīlenbahs and Jānis Endzelīns. It was introduced by law from 1920 to 1922 in the Republic of Latvia.
The modern Corsican alphabet uses twenty-two basic letters taken from the Latin alphabet with some changes, plus some multigraphs. The pronunciations of the English, French, Italian or Latin forms of these letters are not a guide to their pronunciation in Corsican, which has its own pronunciation, often the same, but frequently not. As can be seen from the table below, two of the phonemic letters are represented as trigraphs, plus some other digraphs. Nearly all the letters are allophonic; that is, a phoneme of the language might have more than one pronunciation and be represented by more than one letter. The exact pronunciation depends mainly on word order and usage and is governed by a complex set of rules, variable to some degree by dialect. These have to be learned by the speaker of the language.
The Cyrillic script family contains many specially treated two-letter combinations, or digraphs, but few of these are used in Slavic languages. In a few alphabets, trigraphs and even the occasional tetragraph or pentagraph are used.