約 — promise / approximately

Grade 4やく

Radical ⽷ · radical 120 The building block this kanji is filed under

約 (readings: やく; Japanese kanji) means “promise / approximately”. It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 予約 (reservation).

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What does 約 mean?

Full details, readings & example

Kanji	約
Meaning	promise / approximately
Readings	やく
Grade	Grade 4 (Upper)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	予約 (reservation)

How to read 約

約 is read やく depending on the word.

Words with 約

約束やくそくcam kết
約二百やくにひゃくkhoảng 200
予約đặt trước
契約hợp đồng
誓約lời thề
倹約tiết kiệm

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Updated: 2026-08-09