1.VerbTo show grounds for concluding (that); to indicate, imply.
"The new increase in crime argues for even tougher jail sentences, according to some."
2.VerbTo debate, disagree, or discuss opposing or differing viewpoints; to controvert; to wrangle.
"He also argued for stronger methods to be used against China.; He argued as follows: America should stop Lend-Lease convoying, because it needs to fortify its own Army with the supplies.; The two boys argued over a disagreement about the science project."
3.VerbTo have an argument, a quarrel.
4.VerbTo present (a viewpoint or an argument therefor).
"He argued his point.; He argued that America should stop Lend-Lease convoying because it needed to fortify its own Army with the supplies."