war /wôr/ noun 1. a state of armed conflict between different nations or states or different groups within a nation or state. synonyms:conflict, warfare, combat, fighting, struggle, armed conflict, action, military action, bloodshed, contest, tussle;More engage in a war. "small states warred against each other" synonyms:fight, battle, combat, wage war, make war, be at war, be in conflict, conduct a war, do battle, join battle, take the field, take up armsAll Rights Reserved