war

nouns

the waging of armed conflict against an enemy
"thousands of people were killed in the war"
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"
antonym
an active struggle between competing entities
"a price war"; "a war of wits"; "diplomatic warfare"
a concerted campaign to end something that is injurious
"the war on poverty"; "the war against crime"
war
is a type of (narrower)
a series of actions advancing a principle or tending toward a particular end
"he supported populist campaigns"; "they worked in the cause of world peace"; "the team was ready for a drive toward the pennant"; "the movement to end slavery"; "contributed to the war effort"

verbs

make or wage war
war
is derived from
antonym
is a type of (narrower)
be engaged in a fight; carry on a fight
"the tribesmen fought each other"; "Siblings are always fighting"; "Militant groups are contending for control of the country"