罚款用英语叫做 "fine"。该词源自中世纪拉丁语 "finis"，意思是 "完结、结束"。在这种情况下，罚款意味着违反规定的行为被处以处罚，使这种行为得到纠正。

例句：

The court fined him $500 for speeding.（法院因他超速而罚款500美元。）

The company was fined for violating environmental regulations.（公司因违反环境法规而被罚款。）

She received a fine for not having a valid ticket on the train.（她没有在火车上持有有效票，因此被罚款。）