JMdict: 1244530

苦心 【くしん】

  1. [n,vs,vi] pains; hard work; effort; trouble; labour; labor
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Suffering, Trial, Worry, Hardship, Feel Bitter, Scowl くる.しい, -ぐる.しい, くる.しむ, くる.しめる, にが.い, にが.る
Heart, Mind, Spirit, Heart Radical (no. 61) シン こころ, -ごころ