sport utility vehicle vs sport utility

sport utility vehicle and sport utility both are nouns.

Word	Noun	Adjective	Verb	Adverb
sport utility vehicle	Yes	No	No	No
sport utility	Yes	No	No	No

As nouns, sport utility vehicle and sport utility are synonyms defined as:

sport utility vehicle and sport utility: a high-performance four-wheel drive car built on a truck chassis

Other synonyms of sport utility vehicle include S.U.V., SUV.

sport utility vehicle (noun)	sport utility (noun)
a high-performance four-wheel drive car built on a truck chassis	a high-performance four-wheel drive car built on a truck chassis