1. A discussion in which disagreement is expressed; a debate. 2. A quarrel; a dispute. 3. Shakespeare 4. presented a careful argument for extraterrestrial life. 5. The current low mortgage rates are an argument for buying a house now. 6. A summary or short statement of the plot or subject of a literary work. 7. Shakespeare 8. The minor premise in a syllogism. 9. The independent variable of a function. 10. The amplitude of a complex number. 11. A value used to evaluate a procedure or subroutine.