numbers racket vs numbers pool

numbers racket and numbers pool both are nouns.

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

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

Other synonyms of numbers racket include numbers, numbers game.

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