Seven Years' War vs war

Seven Years' War and war both are nouns.

Word	Noun	Adjective	Verb	Adverb
Seven Years' War	Yes	No	No	No
war	Yes	No	Yes	No

Seven Years' War (noun)	war (noun)
a war of England and Prussia against France and Austria (1756-1763); Britain and Prussia got the better of it	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

Seven Years' War (verb)	war (verb)
	make or wage war