repay

(verb) pay back. Synonyms: refund, return, give back. Example: "Please refund me my money."

(verb) make repayment for or return something. Synonyms: requite.

(verb) act or give recompense in recognition of someone's behavior or actions. Synonyms: reward, pay back.

(verb) answer back. Synonyms: retort, come back, return, riposte, rejoin.