minor leaguer vs bush leaguer

minor leaguer and bush leaguer both are nouns.

Word	Noun	Adjective	Verb	Adverb
minor leaguer	Yes	No	No	No
bush leaguer	Yes	No	No	No

As nouns, minor leaguer and bush leaguer are synonyms defined as:

minor leaguer and bush leaguer: a player on a minor-league baseball team

minor leaguer (noun)	bush leaguer (noun)
a player on a minor-league baseball team	a player on a minor-league baseball team