# Su (kana)

kana gojūon :
| wa | ra | ya | ma | ha | na | ta | sa | ka | a |
| wi | ri | (yi) | mi | hi | ni | chi | shi | ki | i |
| (wu) | ru | yu | mu | fu | nu | tsu | su | ku | u |
| we | re | (ye) | me | he | ne | te | se | ke | e |
| wo | ro | yo | mo | ho | no | to | so | ko | o |
| | | | n | | | | | | |
Kana modifiers and marks :
sokuonfu (gemination)
yōon (palatalization)
chōonpu (vowel lengthener)
Iteration marks
dakuten/handakuten (voiced & semi-voiced marks) :
Multi-moraic kana :
iu
kashiko
koto
sama
shite
toki
tomo
nari
mairasesoro
yori :
vte :
す, in hiragana or ス in katakana, is one of the Japanese kana, each of which represents one mora. Their shapes come from the kanji 寸 and 須, respectively. Both kana represent the sound [sɯ]. In the Ainu language, the katakana ス can be written as small ㇲ to represent a final s and is used to emphasize the pronunciation of [s] rather than the normal [ɕ] (represented in Ainu as ㇱ).
| Forms | Rōmaji | Hiragana | Katakana |
| Normal s- (さ行 sa-gyō) | su | す | ス |
| Normal s- (さ行 sa-gyō) | suu, swu sū | すう, すぅ すー | スウ, スゥ スー |
| Addition dakuten z- (ざ行 za-gyō) | zu | ず | ズ |
| Addition dakuten z- (ざ行 za-gyō) | zuu, zwu zū | ずう, ずぅ ずー | ズウ, ズゥ ズー |
Other additional forms :
Form A (sw-/sy-) :
| Romaji | Hiragana | Katakana |
| swa | すぁ, すゎ | スァ, スヮ |
| swi, si, syi | すぃ | スィ * |
| (swu) | すぅ | スゥ |
| swe | すぇ | スェ |
| swo | すぉ | スォ |
| sya | すゃ | スャ |
| syu | すゅ | スュ |
| sye | すぃぇ | スィェ |
| syo | すょ | スョ |
Form B (zw-/zy-) :
| Romaji | Hiragana | Katakana |
| zwa | ずぁ, ずゎ | ズァ, ズヮ |
| zwi, zi, zyi | ずぃ | ズィ * |
| (zwu) | ずぅ | ズゥ |
| zwe | ずぇ | ズェ |
| zwo | ずぉ | ズォ |
| zya | ずゃ | ズャ |
| zyu | ずゅ | ズュ |
| zye | ずぃぇ | ズィェ |
| zyo | ずょ | ズョ |
* スィ and ズィ are also used to present si and zi pronunciations respectively. For example, 'C' is presented as スィー /siː/. See also Hepburn romanization.

## Stroke order

| Stroke order in writing す | Stroke order in writing ス |

## Other communicative representations

| Japanese radiotelephony alphabet | Wabun code |
| すずめのス Suzume no "Su" | ▄▄▄ ▄▄▄ ▄▄▄ ▄ ▄▄▄ |
| Japanese Navy Signal Flag | Japanese semaphore | Japanese manual syllabary (fingerspelling) | Braille dots-1456 Japanese Braille |
* Full Braille representation
す / ス in Japanese Braille :
| す / ス su | ず / ズ zu | すう / スー sū | ずう / ズー zū | Other kana based on Braille す | Other kana based on Braille す | Other kana based on Braille す | Other kana based on Braille す |
| す / ス su | ず / ズ zu | すう / スー sū | ずう / ズー zū | しゅ / シュ shu | じゅ / ジュ ju | しゅう / シュー shū | じゅう / ジュー jū |
* Computer encodings
Character information :
| Preview | す | す | ス | ス | ｽ | ｽ | ㋜ | ㋜ |
| Unicode name | HIRAGANA LETTER SU | HIRAGANA LETTER SU | KATAKANA LETTER SU | KATAKANA LETTER SU | HALFWIDTH KATAKANA LETTER SU | HALFWIDTH KATAKANA LETTER SU | CIRCLED KATAKANA SU | CIRCLED KATAKANA SU |
| Encodings | decimal | hex | dec | hex | dec | hex | dec | hex |
| Unicode | 12377 | U+3059 | 12473 | U+30B9 | 65405 | U+FF7D | 13020 | U+32DC |
| UTF-8 | 227 129 153 | E3 81 99 | 227 130 185 | E3 82 B9 | 239 189 189 | EF BD BD | 227 139 156 | E3 8B 9C |
| Numeric character reference | &#12377; | &#x3059; | &#12473; | &#x30B9; | &#65405; | &#xFF7D; | &#13020; | &#x32DC; |
| Shift JIS | 130 183 | 82 B7 | 131 88 | 83 58 | 189 | BD | | |
| EUC-JP | 164 185 | A4 B9 | 165 185 | A5 B9 | 142 189 | 8E BD | | |
| GB 18030 | 164 185 | A4 B9 | 165 185 | A5 B9 | 132 49 152 53 | 84 31 98 35 | | |
| EUC-KR / UHC | 170 185 | AA B9 | 171 185 | AB B9 | | | | |
| Big5 (non-ETEN kana) | 198 189 | C6 BD | 199 81 | C7 51 | | | | |
| Big5 (ETEN / HKSCS) | 199 64 | C7 40 | 199 181 | C7 B5 | | | | |
Character information :
| Preview | ㇲ | ㇲ | ず | ず | ズ | ズ |
| Unicode name | KATAKANA LETTER SMALL SU | KATAKANA LETTER SMALL SU | HIRAGANA LETTER ZU | HIRAGANA LETTER ZU | KATAKANA LETTER ZU | KATAKANA LETTER ZU |
| Encodings | decimal | hex | dec | hex | dec | hex |
| Unicode | 12786 | U+31F2 | 12378 | U+305A | 12474 | U+30BA |
| UTF-8 | 227 135 178 | E3 87 B2 | 227 129 154 | E3 81 9A | 227 130 186 | E3 82 BA |
| Numeric character reference | &#12786; | &#x31F2; | &#12378; | &#x305A; | &#12474; | &#x30BA; |
| Shift JIS (plain) | | | 130 184 | 82 B8 | 131 89 | 83 59 |
| Shift JIS-2004 | 131 238 | 83 EE | 130 184 | 82 B8 | 131 89 | 83 59 |
| EUC-JP (plain) | | | 164 186 | A4 BA | 165 186 | A5 BA |
| EUC-JIS-2004 | 166 240 | A6 F0 | 164 186 | A4 BA | 165 186 | A5 BA |
| GB 18030 | 129 57 188 54 | 81 39 BC 36 | 164 186 | A4 BA | 165 186 | A5 BA |
| EUC-KR / UHC | | | 170 186 | AA BA | 171 186 | AB BA |
| Big5 (non-ETEN kana) | | | 198 190 | C6 BE | 199 82 | C7 52 |
| Big5 (ETEN / HKSCS) | | | 199 65 | C7 41 | 199 182 | C7 B6 |