This is the 5530th most frequent Japanese word.
お詫び
Apology.
お詫び here is used as a formal noun to express one's apology.
この度の失敗について、心よりお詫び申し上げます。
I sincerely apologize for the recent mistake.
お詫び is used to describe an action as a gesture of apology.
彼は遅刻したことへのお詫びとして菓子を持ってきました。
He brought sweets as an apology for being late.
お詫び refers to the verbal or written expression of regret in this context.