Nouns

(n)argument, argumentation, debatea discussion in which reasons are advanced for and against some proposition or proposal“the argument over foreign aid goes on and on”
(n)debate, disputation, public debatethe formal presentation of a stated proposition and the opposition to it (usually followed by a vote)

Verbs

(v)debateargue with one another“We debated the question of abortion”, “John debated Mary”
(v)consider, debate, moot, turn over, deliberatethink about carefully; weigh“They considered the possibility of a strike”, “Turn the proposal over in your mind”
(v)debate, deliberatediscuss the pros and cons of an issue
(v)argue, contend, debate, fencehave an argument about something