numbers vs numbers racket

numbers and numbers racket both are nouns.

Word	Noun	Adjective	Verb	Adverb
numbers	Yes	No	No	No
numbers racket	Yes	No	No	No

As nouns, numbers and numbers racket are synonyms defined as:

Other synonyms of numbers include numbers game, numbers pool.

numbers (noun)	numbers racket (noun)
an illegal daily lottery	an illegal daily lottery