Select the most appropriate synonym of the given word: REPEAL

Key idea: "Repeal" means to officially cancel, annul, or revoke a law, rule, or decision.

Why "revoke" is correct:

• "Revoke" means to take back, cancel, or annul something officially; this directly matches the meaning of "repeal."

Why the other choices are incorrect:

• "ratify" means to formally approve or confirm, which is the opposite of cancelling.

• "endorse" means to support or approve publicly, not to annul.

• "confirm" means to verify or validate, which does not convey cancellation.

Conclusion: "Revoke" is the best synonym because it expresses the act of officially cancelling or annulling, which is the core meaning of "repeal."