war

(noun) the waging of armed conflict against an enemy. Synonyms: warfare. Example: "Thousands of people were killed in the war."

(noun) a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply. Synonyms: state of war. Example: "War was declared in november but actual fighting did not begin until the following spring."

(noun) an active struggle between competing entities. Synonyms: warfare. Examples: "A price war." "A war of wits." "Diplomatic warfare."

(noun) a concerted campaign to end something that is injurious. Examples: "The war on poverty." "The war against crime."

(verb) make or wage war.