"一心に" means "wholeheartedly", "with one's whole heart"

Kanji in this word

Related words "一"

• 一因 (ichiin)one factor
• 一員 (ichiin)one member
• 一応 (ichio)tentatively
• 一群 (ichigun)one group
• 一芸 (ichigei)an art
• 一撃 (ichigeki)blow

Related words "心"

• 一心 (isshin)engrossment
• 一心に (isshinni)wholeheartedly, with one's whole heart
• 一心同体 (isshindotai)alteregoism
• 一心不乱 (isshinfuran)completely absorbed, extremely concentrated
• 一安心 (hitoanshin)feeling of relief
• 下心 (shitagokoro)a secret intention