一 Reading Meaning in English Stroke order>Kanji>Dictionary

Kanji：

一

Reading：

いち	ichi	On-yomi	Go-on
いつ	itsu	On-yomi	Kan-on
いっ	itt	On-yomi	On-bin
ひと	hito	Kun-yomi	Wa-on

Writing：

Stroke count １画 一画 Without radical ０画 零画 Stroke order

Origin：

Radical 一 Type Ideogram Story Draw one horizontal line to start counting items.

Meaning 1：

Number 1

一

いち

ichi

One

Meaning 2：

One unit

一つ	ひとつ	hitotsu	One portion
一日	いちにち	ichinichi	One day
一月	ひとつき	hitotsuki	One month
一秒	いちびょう	ichibyou	One second
一分	いっぷん	ippun	One minute
一時	いちじ	ichiji	One hour

Meaning 3：

Of the first order

一月	いちがつ	ichigatsu	January
一番	いちばん	ichibann	First place

Meaning 4：

Small amount

一瞬	いっしゅん	isshun	Moment
一息	ひといき	hitoiki	Rest

Meaning 5：

Pure unmixed state

一途	いちず	ichizu	Dedication
一心	いっしん	isshin	Concentration
一意	いちい	ichii	Focus
唯一	ゆいいつ	yuiitsu	Only

Study level：

Public school：

Grade-1 kanji　＜　Gakusyu kanji　＜　Joyou kanji　＜　Kouki jiten

JLPT：

N5　＜　N4　＜　N3　＜　N2　＜　N1　＜　More

JIS：

JIS level-1　＜　JIS level-2　＜　JIS level-3　＜　JIS level-4

Introduction of 一：

What kanji set is 一 in?：

Kanji 一 is in the 学習漢字 (Gakusyu kanji), a subset of the 常用漢字 (Joyou kanji).
Kanji 一 is studied in Japanese elementary schools at the first-grade level. Mastering all the Gakusyu kanji is a requirement for graduation.

漢数字 Kanji numerals：

In the Japanese school curriculum, there are two ways of writing the numbers: using kanji numerals ( 一 二 三 四) or using Arabic numerals (１ ２ ３ ４).
Kanji numerals are called 漢数字 (かんすうじ　Kansuuji), used in traditional writing.
Arabic numerals are called アラビア数字 (あらびあすうじ　Arabiasuuji), used in math and science writing.

数え方 Reading numbers：

In the Japanese school curriculum, there are two ways of reading the numbers: onnyomi and kunnyomi. Onnyomi comes from the Chinese sound, and kunnyomi comes from the native Japanese sound.

How to determine readning いち or ひとつ：

一 (いち Ichi) is onnyomi and 一つ (ひとつ Hitotsu) is kunnyomi. To determine the reading in the sentence, kunnyomi is always written as 一つ, not 一. By adding つ after 一, native Japanese speakers can judge kanji's reading.

音便 Phonetic shift：

The kanji 一 (いち) is often combined with other kanji to form a compound kanji. For instance, 一 is combined with 分 (ふん) to form 一分 (いっぷん) or combined with 個 (こ) to form 一個 (いっこ).
In such compound words, いち is phonetically shifted to いっ to make it easier to pronounce. 一分 is いっぷん, not いちふん. 一個 is いっこ, not いちこ.
This kind of phonetic shift is called 音便 (おんびん Onnbin) in Japanese grammatical terms.

Multilinguaism：

Japanese：

一 ひらがな いち カタカナ イチ ヘボン式ローマ字 ichi 訓令式ローマ字 iti

English：

one hiragana わん katakana ワン

Korean：

한글 일 발음 일 RR2000 il MR1937 il 히라가나 いる 가타가나 イル

Chinese：

繁体 一 簡体 一 拼音 yī yi1 Latin yi 平假名 いー 片假名 イー

Digital character set data：

JIS X 0213：

1-16-76

Unicode：

U+4e00

UTF-8：

0xE4 0xB8 0x80

UTF-16：

0x4E00

HTML：

一 一

Javascript：

\u4E00

Further study：

Japan Ministry of Education (文部科学省). 学習指導要領 生きる力. 2017.
Republic of Korea Ministry of Education (대한민국 교육부).
People's Republic of China Ministry of Education (中华人民共和国教育部). Tōngyòng Guīfàn Hànzì Biǎo (通用规范汉字表). 2013.

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