civil war vs war

civil war and war both are nouns.

Word	Noun	Adjective	Verb	Adverb
civil war	Yes	No	No	No
war	Yes	No	Yes	No

As nouns, war is a hypernym of civil war; that is, war is a word with a broader meaning than civil war:

Other hypernyms of civil war include warfare.

civil war (noun)	war (noun)
a war between factions in the same country	the waging of armed conflict against an enemy
	a concerted campaign to end something that is injurious
	an active struggle between competing entities
	a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply

civil war (verb)	war (verb)
	make or wage war