1 an oral disagreement; verbal opposition; contention; altercation:a violent argument.
2 a discussion involving differing points of view; debate:
8 evidenceorproof. and amatterofcontention.
Argument, controversy, dispute imply the expression of opinions for andagainst some idea. An argument usually arises from a disagreementbetween two persons, each of whom advances facts supporting his or herown point of view. A controversy or a dispute may involve two or morepersons. A dispute is an oral contention, usually brief, and often of a heated angry, or undignified character: a violent dispute over a purchase.Acontroversy is an oral or written expression of contrary opinions, and maybe dignified and of some duration: a political controversy.