Kanji
研
Sharpen
Also: Polish, Study Of
On'yomi
- けん ken
Kun'yomi
- と(ぐ) togu
Stroke count, radical and JLPT level of 研
研 has 9 strokes and its Kangxi radical is 石 (stone), number 112. Hashidari places it at JLPT N4. Japanese students learn it in grade 3 of elementary school.
No official JLPT kanji list exists: the level is Hashidari's own placement. How we place kanji