a concerted campaign to end something that is injurious
"the war on poverty"
"the war against crime"
an active struggle between competing entities
"a price war"
"a war of wits"
a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply
"war was declared in November but actual fighting did not begin until the following spring"
- state of war
the waging of armed conflict against an enemy
"thousands of people were killed in the war"
make or wage war