预付货款的英文称为"Advance Payment"。

预付货款是指在货物或服务交付前，由买方提前付给卖方的款项。这种款项可以作为购买货物或服务的定金，也可以作为对货物或服务的全额支付。

下面是一些英文例句及其中文翻译：

The buyer agreed to make an advance payment of 50% of the total cost of the goods. 买方同意预付50%的货款。
The suppper required us to make an advance payment before they would start work on the project. 供应商要求我们在开始项目前预付货款。
We made an advance payment on the goods, but they never arrived. 我们已经预付货款，但是货物从未到达。