JMdict: 1161050

一意専心 【いちいせんしん】

  1. [adv,n,adj-no] single-mindedly; wholeheartedly; with all one's heart; with one's heart and soul
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
One, One Radical (no.1) イチ, イツ ひと-, ひと.つ
Idea, Mind, Heart, Taste, Thought, Desire, Care, Liking
Specialty, Exclusive, Mainly, Solely セン もっぱ.ら
Heart, Mind, Spirit, Heart Radical (no. 61) シン こころ, -ごころ