An angry dispute; an altercation. A cause of a dispute or an argument: We have no quarrel with the findings of the committee. To engage in a quarrel; dispute angrily. See Synonyms at argue. To disagree; differ: I quarrel with your conclusions. To find fault; complain. A bolt for a crossbow. A tool, such as a stonemason's chisel, that has a squared head. A small diamond-shaped or square pane of glass in a latticed window.