keycard vs identity card

keycard and identity card both are nouns.

Word	Noun	Adjective	Verb	Adverb
keycard	Yes	No	No	No
identity card	Yes	No	No	No

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

keycard: a plastic card that has a magnetically coded strip that is scanned in order to operate a mechanism
identity card: a card certifying the identity of the bearer

Other hypernyms of keycard include card.

keycard (noun)	identity card (noun)
a plastic card that has a magnetically coded strip that is scanned in order to operate a mechanism	a card certifying the identity of the bearer