card player vs player

card player and player both are nouns.

Word	Noun	Adjective	Verb	Adverb
card player	Yes	No	No	No
player	Yes	No	No	No

As nouns, player is a hypernym of card player; that is, player is a word with a broader meaning than card player:

Other hypernyms of card player include participant.

card player (noun)	player (noun)
someone who plays (or knows how to play) card games	a theatrical performer
	a person who participates in or is skilled at some game
	someone who plays a music as a profession
	a person who pursues a number of different social and sexual partners simultaneously
	someone who takes part in an activity