JapaneseJLPT

Kanji 一 - one

Kanji 一 meaning and readings

Kanji 一 means one. Onyomi readings are イチ (ichi), イツ (itsu) . Kunyomi readings are ひと (hito).

JLPT N5Grade 1
Stroke order animation for kanji 一

Stroke order animation (1 strokes)

Stroke Order Diagram

Each box shows the kanji up to that stroke. Red dot indicates stroke start point.

Readings of 一

音On'yomi (音読み)

イチ(ichi)
イツ(itsu)

訓Kun'yomi (訓読み)

ひと(hito)
Japanese kanji 一 in different fonts

一 in different fonts

Vocabulary with 一

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oneichi一いち
Januaryichigatsu一月いちがつ
Common words containing the kanji 一

More Information about 一

What does 一 (ichi) mean and how do you read it?

一 (ichi) means one / first. Onyomi (on'yomi) (Chinese readings): イチ (ichi), イツ (itsu). Kunyomi (kun'yomi) (Japanese readings): ひと (hito), ひとつ (hitotsu).

What are some common compound words (熟語 - jukugo) using 一 (ichi)?

Many important compounds use 一 (ichi):

  • 一生 (isshō): a lifetime.
  • 一瞬 (isshun): an instant.
  • 一流 (ichiryū): first-class, top-tier.
  • 一致 (icchi): agreement, unity.
  • 唯一 (yuiitsu): the only, unique. These compounds show how 一 (ichi) conveys ideas of singularity, importance, or excellence.

Is 一 (ichi) used in Japanese idioms or sayings?

Yes, 一 (ichi) appears in many proverbs and idioms:

  • 一期一会 (ichi-go ichi-e): 'one time, one meeting,' meaning each encounter is unique and should be treasured.
  • 一石二鳥 (isseki nichō): 'kill two birds with one stone.'
  • 一心不乱 (isshin furan): 'with single-minded devotion.' These expressions reflect the deep cultural emphasis on mindfulness, efficiency, and focus.

Philosophical Symbolism

In Zen Buddhism, 一 (ichi) represents the oneness of reality (一如 – ichinyo): the idea that all phenomena are interconnected. It symbolizes beginning, unity, and the source of all multiplicity. A Zen phrase states: 'From one, ten thousand things arise.' Thus, 一 (ichi) carries profound weight beyond its numerical value.

Radical and Structural Role

As a radical, 一 (ichi) is the simplest of all. It often appears as a component to suggest unity or the number one. For example:

  • 三 (san) literally builds on 一 (ichi) by adding more strokes.
  • 百 (hyaku) contains 一 (ichi) at the top, symbolizing the unit that structures larger numbers. Thus, 一 (ichi) is both a number and a structural building block in the kanji system.

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