exhibition game vs practice game

exhibition game and practice game both are nouns.

Word	Noun	Adjective	Verb	Adverb
exhibition game	Yes	No	No	No
practice game	Yes	No	No	No

As nouns, exhibition game and practice game are synonyms defined as:

exhibition game and practice game: a game whose outcome is not recorded in the season's standing

exhibition game (noun)	practice game (noun)
a game whose outcome is not recorded in the season's standing	a game whose outcome is not recorded in the season's standing