1. (noun)quarrel, wrangle, row, words, run-in, dustup an angry dispute "they had a quarrel"; "they had words"
2. (noun)quarrel an arrow that is shot from a crossbow; has a head with four edges
3. (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"