volleyball game vs volley ball

volleyball game and volley ball both are nouns.

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

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

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

Other synonyms of volleyball game include volleyball.

volleyball game (noun)	volley ball (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