研 — to research / to polish

Grade 3けん, と

Radical ⽯ · radical 112 The building block this kanji is filed under

研 (readings: けん, と; Japanese kanji) means “to research / to polish”. It is a Grade 3 Kyōiku kanji, taught in year 3 of Japanese elementary school, and appears in words such as 研究 (research).

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What does 研 mean?

Full details, readings & example

Kanji	研
Meaning	to research / to polish
Readings	けん, と
Grade	Grade 3 (Medium)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	研究 (research)

How to read 研

研 is read けん or と depending on the word.

Words with 研

研究けんきゅうnghiên cứu
研究者けんきゅうしゃnhà nghiên cứu
研磨mài giũa

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Updated: 2026-08-09