racket club vs social club

racket club and social club both are nouns.

Word	Noun	Adjective	Verb	Adverb
racket club	Yes	No	No	No
social club	Yes	No	No	No

As nouns, social club is a hypernym of racket club; that is, social club is a word with a broader meaning than racket club:

Other hypernyms of racket club include club, gild, guild, lodge, order, society.

racket club (noun)	social club (noun)
club for players of racket sports	a formal association of people with similar interests