ほうき放棄houki
1.

The act of intentionally relinquishing or discarding something of importance, such as a duty or responsibility, without intention to retrieve it.

2.

The deliberate choice to forgo or abandon one's rights, interests, or benefits, often entailing a conscious decision to let go of what one possesses.

Example:

日本国民は戦争を放棄している。

さいけんほうき債権放棄saikenhouki
1.

A legal act where a creditor voluntarily relinquishes their right to collect a debt from a borrower.

2.

The unconditional decision by a lender to cancel the obligation of repayment, thereby relieving the debtor from financial responsibility.

けんりほうき権利放棄kenrihouki
1.

A formal relinquishment of a legal entitlement or claim, often documented to prevent future assertion of the right.

2.

The act of voluntarily giving up one's rights, privileges, or legal claims, typically to avoid obligations or responsibilities associated with them.