Jōyō kanji, Taught in grade 3
JLPT level: N4
336 of 2500 most used kanji in newspapers
Stroke count: 9
Meaning: polish, study of, sharpen
Kunyomi: と.ぐ
Onyomi: ケン
Composition: 石 幵
Radical: 石
Reading: いしへん
Meaning: stone
Strokes: 5
研修(けんしゅう) training
研究所(けんきゅうじょ) research institute
研究室(けんきゅうしつ) seminar room, prof's office
研摩する(けんまする) grind
研究する(けんきゅうする) research [ v.t.]
研ぐ(とぐ) sharpen
研究員 (ケンキュウイン) researcher, lab worker
研究 (ケンキュウ) study, research, investigation
予研 (ヨケン) National Institute of Health
技研 (ギケン) technical research institute
研ぐ (とぐ) to sharpen, to hone, to whet, to grind, to wash (rice), to scour, to polish, to burnish