1.争论，争吵，争辩，辩论
We should supersede outdated regulations and customs.
我们应该废弃陈规旧习。
The two lawyers had an argument at their very first meeting.
这两名律师初次见面就辩论起来。

2.论据，理由，论点
He quickly seized on a flaw in his opponent's argument.
他很快地抓住了对方论据中的一个漏洞。
This argument, being purely logical, applies to scientific predictors of any complexity.
这个纯逻辑的论点适用于各种各样的科学预测者。

3.说理；论证
He went over line after line of wise argument.
他浏览了一行行高明的论证。

4.内容提要

5参数【计算机用语】
an invalid argument was encountered.
遇到了一个无效的参数。