Here are some examples:
* "They had a heated argument about politics." (Here, "argument" refers to a disagreement.)
* "The essay presented a strong argument for the author's point of view." (Here, "argument" refers to a logical reasoning or a set of reasons.)
However, "argument" can also be a verb.
For example:
* "He argued his case passionately." (Here, "argued" means to present reasons for or against something.)
So, whether "argument" is a noun or verb depends on how it is used in a sentence.