down payment是"订金"的意思。
advance payment是“提前付款”的意思。
在商务英语中，有个"advance payment discount"，它的意思是：提前付款给出的折扣。
在所有的商务往来中，买方都要先给卖方付订金即down payment，之后卖方给买方送货，买方应在收到货10天之内结清余额。
有的卖方为了增加现金流，会有advance payment discount，即如果买方在收到货之后当天就结清余额，即享受卖家一定的折扣。而买家这个举动称作提前付款，即advance payment。
扩展资料：
down payment例句：
1、We ask for a five percent down payment.
我们要求百分之五的定金。
2、This Guarantee shall come into effect from the date of the actual receipt of the down payment by the Seller
此保函自卖方实际收到预付款之日起生效
advance payment例句：
1、Methods of payment: after the contract is signed and before the production, Party B shall make an advance payment of 30% of the total as the subscription.
付款方法：合同签订后，制作前，乙方预付甲方总货款的 30% 做订金。
2、In theeventof suchtermination of this Contract, Seller shall return toBuyer any advancepayment (including downpayments under Articles 5.1) received from Buyer under this Contract.
在本合同终止时，卖方应当退还根据本合同从买方收到的所有预付金（包括根据第5.1款项下的预付款）。
