JMdict: 1258700

研鑽 【けんさん】

  1. [n,vs,vt] diligent study; devoting oneself to one's studies
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
研 Polish, Study Of, Sharpen ケン と.ぐ
鑽 Make Fire By Rubbing Sticks サン き.る