beggar-my-neighbor vs card game

beggar-my-neighbor and card game both are nouns.

Word	Noun	Adjective	Verb	Adverb
beggar-my-neighbor	Yes	No	No	No
card game	Yes	No	No	No

As nouns, card game is a hypernym of beggar-my-neighbor; that is, card game is a word with a broader meaning than beggar-my-neighbor:

beggar-my-neighbor: a card game for two players in which the object is to win all of the other player's cards
card game: a game played with playing cards

Other hypernyms of beggar-my-neighbor include cards.

beggar-my-neighbor (noun)	card game (noun)
a card game for two players in which the object is to win all of the other player's cards	a game played with playing cards