こくはく告白kokuhaku
1.
The act of revealing something that one has kept hidden, often relating to personal feelings, thoughts, or desires, and expressing it candidly to another person.
2.
The formal act in Christianity of disclosing one's sins to God with the intention of seeking forgiveness and absolution.
3.
The process of openly declaring or announcing information, which may include sharing something significant to inform others or raise awareness.
Example:
自分の過ちを告白するのに恥じる必要は何もない。