armored combat vehicle vs turret

armored combat vehicle and turret both are nouns.

Word	Noun	Adjective	Verb	Adverb
armored combat vehicle	Yes	No	No	No
turret	Yes	No	No	No

armored combat vehicle (noun)	turret (noun)
an enclosed armored military vehicle; has a cannon and moves on caterpillar treads	a small tower extending above a building
	a self-contained weapons platform housing guns and capable of rotation