JMdict: 1163590

一心に 【いっしんに】

  1. [adv] wholeheartedly; single-mindedly; fervently; intently
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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
Heart, Mind, Spirit, Heart Radical (no. 61) シン こころ, -ごころ