餐厅结账用英语叫"check out"，来源于结账时给客人出账单，客人查看账单内容后确认支付费用，就可以离开餐厅了。

例句：

Could I have the check, please? (我可以要账单吗？)

I'm ready to check out. (我准备结账了。)

The total comes to $50. Please sign here to check out. (总共50美元。请在这里签字结账。)