entertainment industry vs show business

entertainment industry and show business both are nouns.

Word	Noun	Adjective	Verb	Adverb
entertainment industry	Yes	No	No	No
show business	Yes	No	No	No

As nouns, entertainment industry and show business are synonyms defined as:

entertainment industry and show business: those involved in providing entertainment: radio and television and films and theater

Other synonyms of entertainment industry include show biz.

entertainment industry (noun)	show business (noun)
those involved in providing entertainment: radio and television and films and theater	those involved in providing entertainment: radio and television and films and theater