1. (

• refund ,
• return ,
• repay ,
• give_back

) pay back; "Please refund me my money" ;

2. (

• requite ,
• repay ,

) make repayment for or return something ;

3. (

• reward ,
• repay ,
• pay_back

) act or give recompense in recognition of someone's behavior or actions ;

4. (

• retort ,
• come_back ,
• repay ,
• return ,
• riposte ,
• rejoin

) answer back ;