Su (kana)

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 . 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
	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
	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 . See also Hepburn romanization.

Stroke order

Stroke order in writing す Stroke order in writing す

Stroke order in writing ス Stroke order in writing ス

File:す-bw.png

Stroke order in writing す

File:ス-bw.png

Stroke order in writing ス

Other communicative representations

• 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
				しゅ / シュ shu	じゅ / ジュ ju	しゅう / シュー shū	じゅう / ジュー jū
Template:Braille cell	Template:Braille cell	Template:Braille cell	Template:Braille cell	Template:Braille cell	Template:Braille cell	Template:Braille cell	Template:Braille cell

• Computer encodings