volleyball game vs volleyball

volleyball game and volleyball both are nouns.

Word	Noun	Adjective	Verb	Adverb
volleyball game	Yes	No	No	No
volleyball	Yes	No	No	No

As nouns, volleyball game and volleyball are synonyms defined as:

volleyball game and volleyball: a game in which two teams hit an inflated ball over a high net using their hands

Other synonyms of volleyball game include volley ball.

volleyball game (noun)	volleyball (noun)
a game in which two teams hit an inflated ball over a high net using their hands	a game in which two teams hit an inflated ball over a high net using their hands
	an inflated ball used in playing volleyball