Kana | |
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Script type | |
Time period | c. 800 –present |
Direction | Vertical right-to-left, left-to-right |
Region | Japan |
Languages | Japanese, Ryukyuan languages, Ainu |
Related scripts | |
Parent systems | |
ISO 15924 | |
ISO 15924 | Hrkt(412),Japanese syllabaries (alias for Hiragana + Katakana) |
Unicode | |
Unicode alias | Katakana or Hiragana |
| |
Japanese writing |
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Components |
Uses |
Transliteration |
Kana ( 仮名 , Japanese pronunciation: [kana] ) are syllabaries used to write Japanese phonological units, morae. In current usage, kana most commonly refers to hiragana [1] and katakana . It can also refer to their ancestor magana (真仮名, lit. 'true kana'), [2] which were Chinese characters used phonetically to transcribe Japanese (e.g. man'yōgana ); and hentaigana , which are historical variants of the now-standard hiragana.
Katakana, with a few additions, are also used to write Ainu. A number of systems exist to write the Ryūkyūan languages, in particular Okinawan, in hiragana. Taiwanese kana were used in Taiwanese Hokkien as ruby text for Chinese characters in Taiwan when it was under Japanese rule.
Each kana character corresponds to one sound or whole syllable in the Japanese language, unlike kanji regular script, which corresponds to a meaning. Apart from the five vowels, it is always CV (consonant onset with vowel nucleus), such as ka, ki, sa, shi, etc., with the sole exception of the C grapheme for nasal codas usually romanised as n. The structure has led some scholars to label the system moraic , instead of syllabic, because it requires the combination of two syllabograms to represent a CVC syllable with coda (e.g. CVn, CVm, CVng), a CVV syllable with complex nucleus (i.e. multiple or expressively long vowels), or a CCV syllable with complex onset (i.e. including a glide, CyV, CwV).
The limited number of phonemes in Japanese, as well as the relatively rigid syllable structure, makes the kana system a very accurate representation of spoken Japanese.
'Kana' is a compound of kari (仮, 'borrowed; assumed; false') and na (名, 'name'), which eventually collapsed into kanna and ultimately 'kana'. [2]
Today it is generally assumed that 'kana' were considered "false" kanji due to their purely phonetic nature, as opposed to mana ( 真名 ) which were "true" kanji used for their meanings. Yet originally, mana and kana were purely calligraphic terms with mana referring to Chinese characters written in the regular script (kaisho) and kana referring to those written in the cursive (sōsho) style (see hiragana ). It was not until the 18th century that the early-nationalist kokugaku movement which wanted to move away from Sinocentric academia began to reanalyze the script from a phonological point of view. [3] In the following centuries, contrary to the traditional Sinocentric view, kana began to be considered a national Japanese writing system that was distinct from Chinese characters, which is the dominant view today.
Although the term 'kana' is now commonly understood as hiragana and katakana, it actually has broader application as listed below: [2]
The following table reads, in gojūon order, as a, i, u, e, o (down first column), then ka, ki, ku, ke, ko (down second column), and so on. n appears on its own at the end. Asterisks mark unused combinations.
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Syllables beginning with the voiced consonants [g], [z], [d] and [b] are spelled with kana from the corresponding unvoiced columns (k, s, t and h) and the voicing mark, dakuten . Syllables beginning with [p] are spelled with kana from the h column and the half-voicing mark, handakuten .
g | z | d | b | p | ng | l | |
---|---|---|---|---|---|---|---|
a | がガ | ざザ | だダ | ばバ | ぱパ | か゚カ゚ | ら゚ラ゚ |
i | ぎギ | じジ | ぢヂ | びビ | ぴピ | き゚キ゚ | り゚リ゚ |
u | ぐグ | ずズ | づヅ | ぶブ | ぷプ | く゚ク゚ | る゚ル゚ |
e | げゲ | ぜゼ | でデ | べベ | ぺペ | け゚ケ゚ | れ゚レ゚ |
o | ごゴ | ぞゾ | どド | ぼボ | ぽポ | こ゚コ゚ | ろ゚ロ゚ |
Syllables beginning with palatalized consonants are spelled with one of the seven consonantal kana from the i row followed by small ya, yu or yo. These digraphs are called yōon.
k | s | t | n | h | m | r | |
---|---|---|---|---|---|---|---|
ya | きゃ | しゃ | ちゃ | にゃ | ひゃ | みゃ | りゃ |
yu | きゅ | しゅ | ちゅ | にゅ | ひゅ | みゅ | りゅ |
yo | きょ | しょ | ちょ | にょ | ひょ | みょ | りょ |
g | j(z) | j(d) | b | p | ng | |
---|---|---|---|---|---|---|
ya | ぎゃ | じゃ | ぢゃ | びゃ | ぴゃ | き゚ゃ |
yu | ぎゅ | じゅ | ぢゅ | びゅ | ぴゅ | き゚ゅ |
yo | ぎょ | じょ | ぢょ | びょ | ぴょ | き゚ょ |
The difference in usage between hiragana and katakana is stylistic. Usually, hiragana is the default syllabary, and katakana is used in certain special cases. Hiragana is used to write native Japanese words with no kanji representation (or whose kanji is thought obscure or difficult), as well as grammatical elements such as particles and inflections (okurigana). Today katakana is most commonly used to write words of foreign origin that do not have kanji representations, as well as foreign personal and place names. Katakana is also used to represent onomatopoeia and interjections, emphasis, technical and scientific terms, transcriptions of the Sino-Japanese readings of kanji, and some corporate branding.
Kana can be written in small form above or next to lesser-known kanji in order to show pronunciation; this is called furigana. Furigana is used most widely in children's or learners' books. Literature for young children who do not yet know kanji may dispense with it altogether and instead use hiragana combined with spaces.
Systems supporting only a limited set of characters, such as Wabun code for Morse code telegrams and single-byte digital character encodings such as JIS X 0201 or EBCDIK, likewise dispense with kanji, instead using only katakana. This is not necessary in systems supporting double-byte or variable-width encodings such as Shift JIS, EUC-JP, UTF-8 or UTF-16.
Old Japanese was written entirely in kanji, and a set of kanji called man'yōgana were first used to represent the phonetic values of grammatical particles and morphemes. As there was no consistent method of sound representation, a phoneme could be represented by multiple kanji, and even those kana's pronunciations differed in whether they were to be read as kungana (訓仮名, "meaning kana") or ongana (音仮名, "sound kana"), making decipherment problematic. The man'yōshū , a poetry anthology assembled sometime after 759 and the eponym of man'yōgana, exemplifies this phenomenon, where as many as almost twenty kanji were used for the mora ka. The consistency of the kana used was thus dependent on the style of the writer. Hiragana developed as a distinct script from cursive man'yōgana, whereas katakana developed from abbreviated parts of regular script man'yōgana as a glossing system to add readings or explanations to Buddhist sutras. Both of these systems were simplified to make writing easier. The shapes of many hiragana resembled the Chinese cursive script, as did those of many katakana the Korean gugyeol , suggesting that the Japanese followed the continental pattern of their neighbors. [17]
Kana is traditionally said to have been invented by the Buddhist priest Kūkai in the ninth century. Kūkai certainly brought the Siddhaṃ script of India home on his return from China in 806;[ citation needed ] his interest in the sacred aspects of speech and writing led him to the conclusion that Japanese would be better represented by a phonetic alphabet than by the kanji which had been used up to that point. The modern arrangement of kana reflects that of Siddhaṃ, but the traditional iroha arrangement follows a poem which uses each kana once.
However, hiragana and katakana did not quickly supplant man'yōgana. It was only in 1900 that the present set of kana was codified. All the other forms of hiragana and katakana developed before the 1900 codification are known as hentaigana (変体仮名, "variant kana"). Rules for their usage as per the spelling reforms of 1946, the gendai kana-zukai (現代仮名遣い, "present-day kana usage"), which abolished the kana for wi (ゐ・ヰ), we (ゑ・ヱ), and wo (を・ヲ) (except that the last was reserved as the accusative particle). [17]
a | i | u | e | o | =:≠ | |
---|---|---|---|---|---|---|
– | ≠ | ≠ | = | ≠ | = | 2:3 |
k | = | = | = | ≠ | = | 4:1 |
s | ≠ | = | ≠ | = | = | 3:2 |
t | ≠ | ≠ | = | = | = | 3:2 |
n | = | = | = | = | = | 5:0 |
h | ≠ | = | = | = | = | 4:1 |
m | = | ≠ | ≠ | = | = | 3:2 |
y | = | = | = | 3:0 | ||
r | = | = | ≠ | = | = | 4:1 |
w | = | ≠ | = | ≠ | 2:2 | |
n | ≠ | 0:1 | ||||
=:≠ | 6:4 | 5:4 | 6:4 | 7:2 | 9:1 | 33:15 |
Kana are the basis for collation in Japanese. They are taken in the order given by the gojūon (あ い う え お ... わ を ん), though iroha (い ろ は に ほ へ と ... せ す (ん)) ordering is used for enumeration in some circumstances. Dictionaries differ in the sequence order for long/short vowel distinction, small tsu and diacritics. As Japanese does not use word spaces (except as a tool for children), there can be no word-by-word collation; all collation is kana-by-kana.
The hiragana range in Unicode is U+3040 ... U+309F, and the katakana range is U+30A0 ... U+30FF. The obsolete and rare characters (wi and we) also have their proper code points.
Hiragana [1] [2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+304x | ぁ | あ | ぃ | い | ぅ | う | ぇ | え | ぉ | お | か | が | き | ぎ | く | |
U+305x | ぐ | け | げ | こ | ご | さ | ざ | し | じ | す | ず | せ | ぜ | そ | ぞ | た |
U+306x | だ | ち | ぢ | っ | つ | づ | て | で | と | ど | な | に | ぬ | ね | の | は |
U+307x | ば | ぱ | ひ | び | ぴ | ふ | ぶ | ぷ | へ | べ | ぺ | ほ | ぼ | ぽ | ま | み |
U+308x | む | め | も | ゃ | や | ゅ | ゆ | ょ | よ | ら | り | る | れ | ろ | ゎ | わ |
U+309x | ゐ | ゑ | を | ん | ゔ | ゕ | ゖ | ゙ | ゚ | ゛ | ゜ | ゝ | ゞ | ゟ | ||
Notes |
Katakana [1] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+30Ax | ゠ | ァ | ア | ィ | イ | ゥ | ウ | ェ | エ | ォ | オ | カ | ガ | キ | ギ | ク |
U+30Bx | グ | ケ | ゲ | コ | ゴ | サ | ザ | シ | ジ | ス | ズ | セ | ゼ | ソ | ゾ | タ |
U+30Cx | ダ | チ | ヂ | ッ | ツ | ヅ | テ | デ | ト | ド | ナ | ニ | ヌ | ネ | ノ | ハ |
U+30Dx | バ | パ | ヒ | ビ | ピ | フ | ブ | プ | ヘ | ベ | ペ | ホ | ボ | ポ | マ | ミ |
U+30Ex | ム | メ | モ | ャ | ヤ | ュ | ユ | ョ | ヨ | ラ | リ | ル | レ | ロ | ヮ | ワ |
U+30Fx | ヰ | ヱ | ヲ | ン | ヴ | ヵ | ヶ | ヷ | ヸ | ヹ | ヺ | ・ | ー | ヽ | ヾ | ヿ |
Notes
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Characters U+3095 and U+3096 are hiragana small ka and small ke, respectively. U+30F5 and U+30F6 are their katakana equivalents. Characters U+3099 and U+309A are combining dakuten and handakuten, which correspond to the spacing characters U+309B and U+309C. U+309D is the hiragana iteration mark, used to repeat a previous hiragana. U+309E is the voiced hiragana iteration mark, which stands in for the previous hiragana but with the consonant voiced (k becomes g, h becomes b, etc.). U+30FD and U+30FE are the katakana iteration marks. U+309F is a ligature of yori (より) sometimes used in vertical writing. U+30FF is a ligature of koto (コト), also found in vertical writing.
Additionally, there are halfwidth equivalents to the standard fullwidth katakana. These are encoded within the Halfwidth and Fullwidth Forms block (U+FF00–U+FFEF), starting at U+FF65 and ending at U+FF9F (characters U+FF61–U+FF64 are halfwidth punctuation marks):
Katakana subset of Halfwidth and Fullwidth Forms [1] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
... | (U+FF00–U+FF64 omitted) | |||||||||||||||
U+FF6x | ・ | ヲ | ァ | ィ | ゥ | ェ | ォ | ャ | ュ | ョ | ッ | |||||
U+FF7x | ー | ア | イ | ウ | エ | オ | カ | キ | ク | ケ | コ | サ | シ | ス | セ | ソ |
U+FF8x | タ | チ | ツ | テ | ト | ナ | ニ | ヌ | ネ | ノ | ハ | ヒ | フ | ヘ | ホ | マ |
U+FF9x | ミ | ム | メ | モ | ヤ | ユ | ヨ | ラ | リ | ル | レ | ロ | ワ | ン | ゙ | ゚ |
... | (U+FFA0–U+FFEF omitted) | |||||||||||||||
Notes
|
There is also a small "Katakana Phonetic Extensions" range (U+31F0 ... U+31FF), which includes some additional small kana characters for writing the Ainu language. Further small kana characters are present in the "Small Kana Extension" block.
Katakana Phonetic Extensions [1] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+31Fx | ㇰ | ㇱ | ㇲ | ㇳ | ㇴ | ㇵ | ㇶ | ㇷ | ㇸ | ㇹ | ㇺ | ㇻ | ㇼ | ㇽ | ㇾ | ㇿ |
Notes
|
Small Kana Extension [1] [2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+1B13x | 𛄲 | |||||||||||||||
U+1B14x | ||||||||||||||||
U+1B15x | 𛅐 | 𛅑 | 𛅒 | 𛅕 | ||||||||||||
U+1B16x | 𛅤 | 𛅥 | 𛅦 | 𛅧 | ||||||||||||
Notes |
Unicode also includes "Katakana letter archaic E" (U+1B000), as well as 255 archaic Hiragana, in the Kana Supplement block. [18] It also includes a further 31 archaic Hiragana in the Kana Extended-A block. [19]
Kana Supplement [1] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+1B00x | 𛀀 | 𛀁 | 𛀂 | 𛀃 | 𛀄 | 𛀅 | 𛀆 | 𛀇 | 𛀈 | 𛀉 | 𛀊 | 𛀋 | 𛀌 | 𛀍 | 𛀎 | 𛀏 |
U+1B01x | 𛀐 | 𛀑 | 𛀒 | 𛀓 | 𛀔 | 𛀕 | 𛀖 | 𛀗 | 𛀘 | 𛀙 | 𛀚 | 𛀛 | 𛀜 | 𛀝 | 𛀞 | 𛀟 |
U+1B02x | 𛀠 | 𛀡 | 𛀢 | 𛀣 | 𛀤 | 𛀥 | 𛀦 | 𛀧 | 𛀨 | 𛀩 | 𛀪 | 𛀫 | 𛀬 | 𛀭 | 𛀮 | 𛀯 |
U+1B03x | 𛀰 | 𛀱 | 𛀲 | 𛀳 | 𛀴 | 𛀵 | 𛀶 | 𛀷 | 𛀸 | 𛀹 | 𛀺 | 𛀻 | 𛀼 | 𛀽 | 𛀾 | 𛀿 |
U+1B04x | 𛁀 | 𛁁 | 𛁂 | 𛁃 | 𛁄 | 𛁅 | 𛁆 | 𛁇 | 𛁈 | 𛁉 | 𛁊 | 𛁋 | 𛁌 | 𛁍 | 𛁎 | 𛁏 |
U+1B05x | 𛁐 | 𛁑 | 𛁒 | 𛁓 | 𛁔 | 𛁕 | 𛁖 | 𛁗 | 𛁘 | 𛁙 | 𛁚 | 𛁛 | 𛁜 | 𛁝 | 𛁞 | 𛁟 |
U+1B06x | 𛁠 | 𛁡 | 𛁢 | 𛁣 | 𛁤 | 𛁥 | 𛁦 | 𛁧 | 𛁨 | 𛁩 | 𛁪 | 𛁫 | 𛁬 | 𛁭 | 𛁮 | 𛁯 |
U+1B07x | 𛁰 | 𛁱 | 𛁲 | 𛁳 | 𛁴 | 𛁵 | 𛁶 | 𛁷 | 𛁸 | 𛁹 | 𛁺 | 𛁻 | 𛁼 | 𛁽 | 𛁾 | 𛁿 |
U+1B08x | 𛂀 | 𛂁 | 𛂂 | 𛂃 | 𛂄 | 𛂅 | 𛂆 | 𛂇 | 𛂈 | 𛂉 | 𛂊 | 𛂋 | 𛂌 | 𛂍 | 𛂎 | 𛂏 |
U+1B09x | 𛂐 | 𛂑 | 𛂒 | 𛂓 | 𛂔 | 𛂕 | 𛂖 | 𛂗 | 𛂘 | 𛂙 | 𛂚 | 𛂛 | 𛂜 | 𛂝 | 𛂞 | 𛂟 |
U+1B0Ax | 𛂠 | 𛂡 | 𛂢 | 𛂣 | 𛂤 | 𛂥 | 𛂦 | 𛂧 | 𛂨 | 𛂩 | 𛂪 | 𛂫 | 𛂬 | 𛂭 | 𛂮 | 𛂯 |
U+1B0Bx | 𛂰 | 𛂱 | 𛂲 | 𛂳 | 𛂴 | 𛂵 | 𛂶 | 𛂷 | 𛂸 | 𛂹 | 𛂺 | 𛂻 | 𛂼 | 𛂽 | 𛂾 | 𛂿 |
U+1B0Cx | 𛃀 | 𛃁 | 𛃂 | 𛃃 | 𛃄 | 𛃅 | 𛃆 | 𛃇 | 𛃈 | 𛃉 | 𛃊 | 𛃋 | 𛃌 | 𛃍 | 𛃎 | 𛃏 |
U+1B0Dx | 𛃐 | 𛃑 | 𛃒 | 𛃓 | 𛃔 | 𛃕 | 𛃖 | 𛃗 | 𛃘 | 𛃙 | 𛃚 | 𛃛 | 𛃜 | 𛃝 | 𛃞 | 𛃟 |
U+1B0Ex | 𛃠 | 𛃡 | 𛃢 | 𛃣 | 𛃤 | 𛃥 | 𛃦 | 𛃧 | 𛃨 | 𛃩 | 𛃪 | 𛃫 | 𛃬 | 𛃭 | 𛃮 | 𛃯 |
U+1B0Fx | 𛃰 | 𛃱 | 𛃲 | 𛃳 | 𛃴 | 𛃵 | 𛃶 | 𛃷 | 𛃸 | 𛃹 | 𛃺 | 𛃻 | 𛃼 | 𛃽 | 𛃾 | 𛃿 |
Notes
|
Kana Extended-A [1] [2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+1B10x | 𛄀 | 𛄁 | 𛄂 | 𛄃 | 𛄄 | 𛄅 | 𛄆 | 𛄇 | 𛄈 | 𛄉 | 𛄊 | 𛄋 | 𛄌 | 𛄍 | 𛄎 | 𛄏 |
U+1B11x | 𛄐 | 𛄑 | 𛄒 | 𛄓 | 𛄔 | 𛄕 | 𛄖 | 𛄗 | 𛄘 | 𛄙 | 𛄚 | 𛄛 | 𛄜 | 𛄝 | 𛄞 | 𛄟 |
U+1B12x | 𛄠 | 𛄡 | 𛄢 | |||||||||||||
Notes |
The Kana Extended-B block was added in September, 2021 with the release of version 14.0:
Kana Extended-B [1] [2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+1AFFx | 𚿰 | 𚿱 | 𚿲 | 𚿳 | 𚿵 | 𚿶 | 𚿷 | 𚿸 | 𚿹 | 𚿺 | 𚿻 | 𚿽 | 𚿾 | |||
Notes |
Hiragana is a Japanese syllabary, part of the Japanese writing system, along with katakana as well as kanji.
Katakana is a Japanese syllabary, one component of the Japanese writing system along with hiragana, kanji and in some cases the Latin script.
In the linguistic study of written languages, a syllabary is a set of written symbols that represent the syllables or moras which make up words.
Man'yōgana is an ancient writing system that uses Chinese characters to represent the Japanese language. It was the first known kana system to be developed as a means to represent the Japanese language phonetically. The date of the earliest usage of this type of kana is not clear, but it was in use since at least the mid-7th century. The name "man'yōgana" derives from the Man'yōshū, a Japanese poetry anthology from the Nara period written with man'yōgana.
In the Japanese writing system, hentaigana are variant forms of hiragana.
The dakuten, colloquially ten-ten, is a diacritic most often used in the Japanese kana syllabaries to indicate that the consonant of a mora should be pronounced voiced, for instance, on sounds that have undergone rendaku.
The modern Japanese writing system uses a combination of logographic kanji, which are adopted Chinese characters, and syllabic kana. Kana itself consists of a pair of syllabaries: hiragana, used primarily for native or naturalized Japanese words and grammatical elements; and katakana, used primarily for foreign words and names, loanwords, onomatopoeia, scientific names, and sometimes for emphasis. Almost all written Japanese sentences contain a mixture of kanji and kana. Because of this mixture of scripts, in addition to a large inventory of kanji characters, the Japanese writing system is considered to be one of the most complicated currently in use.
の, in hiragana, and ノ, in katakana, are Japanese kana, both representing one mora. In the gojūon system of ordering of Japanese morae, it occupies the 25th position, between ね (ne) and は (ha). It occupies the 26th position in the iroha ordering. Both represent the sound. The katakana form is written similar to the Kangxi radical 丿, radical 4.
A is a Japanese kana that represents the mora consisting of single vowel. The hiragana character あ is based on the sōsho style of kanji 安, while the katakana ア is from the radical of kanji 阿. In the modern Japanese system of alphabetical order, it occupies the first position of the alphabet, before い. Additionally, it is the 36th letter in Iroha, after て, before さ. The Unicode for あ is U+3042, and the Unicode for ア is U+30A2.
I is one of the Japanese kana each of which represents one mora. い is based on the sōsho style of the kanji character 以, and イ is from the radical of the kanji character 伊. In the modern Japanese system of sound order, it occupies the second position of the mora chart, between あ and う. Additionally, it is the first letter in Iroha, before ろ. Both represent the sound. In the Ainu language, katakana イ is written as y in their Latin-based mora chart, and a small ィ after another katakana represents a diphthong.
In the Japanese language, the gojūon (五十音, Japanese pronunciation:[ɡo(d)ʑɯꜜːoɴ], lit. "fifty sounds") is a traditional system ordering kana characters by their component phonemes, roughly analogous to alphabetical order. The "fifty" (gojū) in its name refers to the 5×10 grid in which the characters are displayed. Each kana, which may be a hiragana or katakana character, corresponds to one sound in Japanese. As depicted at the right using hiragana characters, the sequence begins with あ (a), い (i), う (u), え (e), お (o), then continues with か (ka), き (ki), く (ku), け (ke), こ (ko), and so on and so forth for a total of ten rows of five columns.
The chōonpu, also known as chōonkigō (長音記号), onbiki (音引き), bōbiki (棒引き), or Katakana-Hiragana Prolonged Sound Mark by the Unicode Consortium, is a Japanese symbol that indicates a chōon, or a long vowel of two morae in length. Its form is a horizontal or vertical line in the center of the text with the width of one kanji or kana character. It is written horizontally in horizontal text and vertically in vertical text. The chōonpu is usually used to indicate a long vowel sound in katakana writing, rarely in hiragana writing, and never in romanized Japanese. The chōonpu is a distinct mark from the dash, and in most Japanese typefaces it can easily be distinguished. In horizontal writing it is similar in appearance to, but should not be confused with, the kanji character 一 ("one").
U is one of the Japanese kana, each of which represents one mora. In the modern Japanese system of alphabetical order, they occupy the third place in the modern Gojūon (五十音) system of collating kana. In the Iroha, they occupied the 24th position, between む and ゐ. In the Gojūon chart, う lies in the first column and the third row. Both represent the sound. In the Ainu language, the small katakana ゥ represents a diphthong, and is written as w in the Latin alphabet.
In Japanese writing, the kana え (hiragana) and エ (katakana) occupy the fourth place, between う and お, in the modern Gojūon (五十音) system of collating kana. In the Iroha, they occupy the 34th, between こ and て. In the table at right, え lies in the first column and the fourth row. Both represent.
Half-width kana are katakana characters displayed compressed at half their normal width, instead of the usual square (1:1) aspect ratio. For example, the usual (full-width) form of the katakana ka is カ while the half-width form is カ. Additionally, half-width hiragana is included in Unicode, and it is usable on Web or in e-books via CSS's font-feature-settings: "hwid" 1
with Adobe-Japan1-6 based OpenType fonts. Finally, half-width kanji is usable on modern computers, and is used in some receipt printers, electric bulletin board and old computers.
Wi is an obsolete Japanese kana, which is normally pronounced in current-day Japanese. The combination of a W-column kana letter with ゐ゙ in hiragana was introduced to represent in the 19th century and 20th century. It is presumed that 'ゐ' represented, and that 'ゐ' and 'い' represented distinct pronunciations before merging to sometime between the Kamakura and Taishō periods. Along with the kana for we, this kana was deemed obsolete in Japanese with the orthographic reforms of 1946, to be replaced by 'い/イ' in all contexts. It is now rare in everyday usage; in onomatopoeia and foreign words, the katakana form 'ウィ' (U-[small-i]) is used for the mora.
ゑ in hiragana, or ヱ in katakana, is an obsolete Japanese kana that is normally pronounced in current-day Japanese. The combination of a W-column kana letter with "ゑ゙" in hiragana was introduced to represent [ve] in the 19th and 20th centuries.
Wu is a Japanese mora or a kana used to write it, though it has never been in standard use.
Yi is a Japanese mora or a kana used to write it, though it has never been in standard use.
Ye is a Japanese mora or a kana used to write it, no longer in standard use.