壹

See also: 一, 壱, and 弌

壹	U+58F9, 壹 CJK UNIFIED IDEOGRAPH-58F9

← 壸
[U+58F8]

CJK Unified Ideographs

壺 →
[U+58FA]

Translingual

Japanese	壱
Simplified	壹
Traditional	壹

Han character

壹 (Kangxi radical 33, 士+9, 12 strokes, cangjie input 土月一廿 (GBMT), four-corner 4010₈, composition ⿳士冖豆)

Derived characters

噎, 㙪, 嬄, 㦉, 撎, 潱, 曀, 殪, 䊦, 豷, 饐(𮩞), 亄, 㱅, 皼, 㦤, 懿, 鷧(𱊦)

Additional Derived Characters

𠍼, 𤡬, 𮹏, 𪳮, 𤏈, 𦠉, 𪾼, 𧬇(𬤞), 𧴒, 𮚢, 𬬅, 𮧑, 𩻭, 𪆖, 𡬗
𰄿, 𭕀, 𧯸, 𱘡, 𭐚, 𲂟, 𡄻, 𡤜, 𫯈, 𭐛, 𪤴, 𮙙, 𧰝, 𧹌, 𭅮
𨶮(𨸌), 𪭁, 𫻢, 𢦁, 𢦆

References

Kangxi Dictionary: page 243, character 10
Dai Kanwa Jiten: character 5661
Dae Jaweon: page 483, character 19
Hanyu Da Zidian (first edition): volume 1, page 467, character 10
Unihan data for U+58F9

Chinese

simp. and trad.		壹
alternative forms		壱㚃夁𡕍𡔾壱㚃夁𡕍𡔾𡔹𡕋

Glyph origin

Historical forms of the character 壹
Shuowen Jiezi (compiled in Han)	Liushutong (compiled in Ming)
Small seal script	Transcribed ancient scripts

Characters in the same phonetic series () (Zhengzhang, 2003)

	Old Chinese
曀	*qiːɡs
殪	*qiːɡs
豷	qiːɡs, qʰʷriɡs
懿	*qriɡs
饐	*qriɡs
鷧	*qriɡs
撎	*qriɡs
亄	qriɡs, qriɡ
噎	*qiːɡ
壹	*qlid

Phono-semantic compound (形聲 / 形声, OC *qlid): semantic 壺 + phonetic 吉 (OC *klid). (Shuowen)

Pronunciation

Mandarin
(Pinyin): yī (yi¹)

(Zhuyin): ㄧ
Cantonese (Jyutping): jat¹ / jik¹
Southern Min (Hokkien, POJ): chi̍t / it
Wu (Shanghai, Wugniu): ⁷iq

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: yī
  - Zhuyin: ㄧ
  - Tongyong Pinyin: yi
  - Wade–Giles: i¹
  - Yale: yī
  - Gwoyeu Romatzyh: i
  - Palladius: и (i)
  - Sinological IPA ^(key): /i⁵⁵/
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)
  - Jyutping: jat¹ / jik¹
  - Yale: yāt / yīk
  - Cantonese Pinyin: jat⁷ / jik⁷
  - Guangdong Romanization: yed¹ / yig¹
  - Sinological IPA ^(key): /jɐt̚⁵/, /jɪk̚⁵/
Southern Min
- (Hokkien)
  - Pe̍h-ōe-jī: chi̍t / it
  - Tâi-lô: tsi̍t / it
  - Phofsit Daibuun: cit, id
  - IPA (Xiamen): /t͡sit̚⁴/, /it̚³²/
  - IPA (Quanzhou): /t͡sit̚²⁴/, /it̚⁵/
  - IPA (Zhangzhou): /t͡sit̚¹²¹/, /it̚³²/
  - IPA (Taipei): /t͡sit̚⁴/, /it̚³²/
  - IPA (Kaohsiung): /t͡sit̚⁴/, /it̚³²/

Note:

chi̍t - colloquial;
it - literary.

Wu
- (Northern: Shanghai)
  - Wugniu: ⁷iq
  - MiniDict: ih^入
  - Wiktionary Romanisation (Shanghai): ⁴iq
  - Sinological IPA (Shanghai): /iɪʔ⁵⁵/

Middle Chinese: 'jit

Rime
Character	壹
Reading #	1/1
Initial (聲)	影 (34)
Final (韻)	質 (48)
Tone (調)	Checked (Ø)
Openness (開合)	Open
Division (等)	III
Fanqie	於悉切
Baxter	'jit
Reconstructions
Zhengzhang Shangfang	/ʔiɪt̚/
Pan Wuyun	/ʔit̚/
Shao Rongfen	/ʔjet̚/
Edwin Pulleyblank	/ʔit̚/
Li Rong	/ʔiĕt̚/
Wang Li	/ĭĕt̚/
Bernhard Karlgren	/ʔi̯ĕt̚/
Expected Mandarin Reflex	yi
Expected Cantonese Reflex	jat¹

Old Chinese
(Baxter–Sagart): /*ʔi[t]/

(Zhengzhang): /*qlid/

Baxter–Sagart system 1.1 (2014)
Character	壹
Reading #	1/1
Modern Beijing (Pinyin)	yī
Middle Chinese	‹ ʔjit ›
Old Chinese	/*ʔi[t]/
English	one
Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "()" indicate uncertain presence; * Square brackets "[]" indicate uncertain identity, e.g. [t] as coda may in fact be -t or -p; Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary.

Zhengzhang system (2003)
Character	壹
Reading #	1/1
No.	14852
Phonetic component
Rime group	質
Rime subdivision	1
Corresponding MC rime	一
Old Chinese	/*qlid/
Notes	說文吉聲實懿省文加吉聲

Definitions

壹

(Classical) faithful; committed
- 以懲不壹。 [Classical Chinese, trad.]
  以惩不壹。 [Classical Chinese, simp.]
  From: Commentary of Zuo, c. 4^th century BCE
  Yǐ chéng bù yī. [Pinyin]
  To punish those not loyal.
- 居身儉而用心壹。 [Classical Chinese, trad.]
  居身俭而用心壹。 [Classical Chinese, simp.]
  From: Commentary of Zuo, c. 4^th century BCE
  Jū shēn jiǎn ér yòng xīn yī. [Pinyin]
  [He] lives [his] body in frugality and uses [his] heart committedly.
(financial) one, variant of 一
- 壹發五豝。 [Classical Chinese, trad.]
  壹发五豝。 [Classical Chinese, simp.]
  From: The Classic of Poetry, c. 11^th – 7^th centuries BCE, translated based on James Legge's version
  Yī fā wǔ bā. [Pinyin]
  One shot, five sows.

Compounds

不壹
壹岐 (Yīqí)
壹鬱 / 壹郁
民心不壹
禮先壹飯 / 礼先壹饭
莫衷壹是
誠壹 / 诚壹

References

Dictionary of Chinese Character Variants (教育部異體字字典), A00834
“壹”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎^[1], 香港中文大學 (the Chinese University of Hong Kong), 2014–
“壹”, in 教育部臺灣台語常用詞辭典 [Dictionary of Frequently-Used Taiwanese Taigi] (overall work in Mandarin and Hokkien), Ministry of Education, R.O.C., 2025.

Japanese

Shinjitai	壱
Kyūjitai	壹

Kanji

壹

(Hyōgai kanji, kyūjitai kanji, shinjitai form 壱)

Kyūjitai form of 壱 (number one)

Readings

Go-on: いち (ichi)
Kan-on: いつ (itsu)
Kun: ひとつ (hitotsu, 壹つ)
Nanori: い (i)

Korean

Hanja

壹 (eumhun 한 일 (han il))

one

Vietnamese

Han character

壹: Hán Nôm readings: nhất, nhứt

one

Chinese numbers
	0	1	2	3	4	5	6	7	8	9	10	10²	10³	10⁴	10⁶	10⁸	10¹²
Normal (小寫 / 小写)	〇, 零, 空	一, 蜀	二, 兩 / 两	三	四	五	六	七	八	九	十	百	千	萬 / 万, 十千 (Malaysia, Singapore)	百萬 / 百万, 桶(Philippines), 面桶 (Philippines)	億 / 亿	兆 (Taiwan) 萬億 / 万亿 (Mainland China)
Financial (大寫 / 大写)	零	壹	貳 / 贰	參 / 叁	肆	伍	陸 / 陆	柒	捌	玖	拾	佰	仟	萬 / 万, 十千 (Malaysia, Singapore)	百萬 / 百万, 桶(Philippines), 面桶 (Philippines)	億 / 亿	兆 (Taiwan) 萬億 / 万亿 (Mainland China)

Japanese numbers
Number	Kanji	Kana	Romaji
0	零	れい、ゼロ	rei, zero
1	一、壱、弌、壹	いち	ichi
2	二、弐、貳、貮	に	ni
3	三、参	さん	san
4	四、肆	よん、し	yon, shi
5	五、伍	ご	go
6	六、陸	ろく	roku
7	七、漆	なな、しち	nana, shichi
8	八、捌	はち	hachi
9	九、玖	きゅう、く	kyū, ku
10	十、拾	じゅう	jū
100	百、陌、佰	ひゃく	hyaku
1,000	千、阡、仟	せん	sen
10,000	一万、万、一萬、萬	いちまん、まん	ichiman, man
100,000,000	一億、億	いちおく、おく	ichioku, oku