down payment这短语什么意思?

请看朗文词典对该词的解释：
DOWN PAYMENT
最低首付
a payment you make when you buy something that is only part of the full price,with the rest to be paid later:
We\'ve almost got enough money to make a down payment on a house.
下面是转载的有关付款的词汇,
sum 总数,全额
amount 总数,总值
bill 汇票 (美作:check)
bill of exchange 汇票
promissory note 本票,期票
pro forma invoice 估价单,估价发票
voucher 凭单,收据
receipt 收据
advance (payment) 预付(款项)
cash payment 现金支付,付现
deferred payment,payment by instalments 延期付款
cash on delivery 交货付现,货到付款
down payment 预付定金
monthly payment 月度付款
payment in kind 以实物付款
payment in specie 以其真正形式付款
refund,repayment 归还,调换证券
payment in arrears,outstanding payment 拖欠款项
remuneration 报酬,补偿
compensation 赔偿,补偿