B1an amount of money that is given back to you, especially because you are not happy with a product or service that you have bought(尤指因为对购买的产品或服务不满意而追回的)退款,返还款,偿还金额
I took the radio back to the shop and asked for/demanded/got/was given a refund.我把收音机拿回商店,让他们退款/坚决要求店方退款/得到了退款/他们给我办理了退款。