Su (kana)

su
hiragana katakana
transliteration	su
translit. with dakuten	zu
hiragana origin	寸
katakana origin	須
spelling kana	すずめのス (Suzume no "su")

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 [su͍]. 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).^[1]

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-) Romaji Hiragana Katakana swa すぁ スァ swi, Si すぃ スィ * swe すぇ スェ swo すぉ スォ	Form B (zw-) Romaji Hiragana Katakana zwa ずぁ ズァ zwi, zi ずぃ ズィ * zwe ずぇ ズェ zwo ずぉ ズォ

* 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

Stroke order in writing す

Stroke order in writing ス

Other representations

• Computer encodings

Character	す		ス		ｽ		ㇲ		ず		ズ
Unicode name	HIRAGANA LETTER SU		KATAKANA LETTER SU		HALFWIDTH KATAKANA LETTER SU		KATAKANA LETTER SMALL SU		HIRAGANA LETTER ZU		KATAKANA LETTER ZU
Encodings	decimal	hex	decimal	hex	decimal	hex	decimal	hex	decimal	hex	decimal	hex
Unicode	12377	U+3059	12473	U+30B9	65405	U+FF7D	12786	U+31F2	12378	U+305A	12474	U+30BA
UTF-8	227 129 153	E3 81 99	227 130 185	E3 82 B9	239 189 189	EF BD BD	227 135 178	E3 87 B2	227 129 154	E3 81 9A	227 130 186	E3 82 BA
Numeric character reference	す	す	ス	ス	ｽ	ｽ	ㇲ	ㇲ	ず	ず	ズ	ズ
Shift JIS	130 183	82 B7	131 88	83 58	189	BD			130 184	82 B8	131 89	83 59

• Braille

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

• Japanese semaphore

References

1. Refsing, Kirsten (1996). Early European Writings on the Ainu Language. London: Routledge. ISBN 0-7007-0400-0.