1. (noun)dispute, difference, difference of opinion, conflict a disagreement or argument about something important
"he had a dispute with his wife"; "there were irreconcilable differences"; "the familiar conflict between Republicans and Democrats"
2. (noun)dispute, contravention coming into conflict with
3. (verb)challenge, dispute, gainsay takeexception to
"She challenged his claims"
4. (verb)quarrel, dispute, scrap, argufy, altercate have a disagreementover something
"We quarreled over the question as to who discovered America"; "These two fellows are always scrapping over something"