noun[ C ](also downpayment)uk/ˌdaʊn ˈpeɪ.mənt/us/ˌdaʊn ˈpeɪ.mənt/
（分期付款的）首付款
an amount of money that you pay at the time that you buy something but is only a part of the total cost of that thing. You usually pay the rest of the cost over a period of time
I made/put a down payment on a new smart TV.我已经交了新智能电视机的首付货款。