illegitimate enterprise vs fraudulent scheme

illegitimate enterprise and fraudulent scheme both are nouns.

Word	Noun	Adjective	Verb	Adverb
illegitimate enterprise	Yes	No	No	No
fraudulent scheme	Yes	No	No	No

As nouns, illegitimate enterprise and fraudulent scheme are synonyms defined as:

illegitimate enterprise and fraudulent scheme: an illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit

Other synonyms of illegitimate enterprise include racket.

illegitimate enterprise (noun)	fraudulent scheme (noun)
an illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit	an illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit