closed corporation vs corp

closed corporation and corp both are nouns.

Word	Noun	Adjective	Verb	Adverb
closed corporation	Yes	No	No	No
corp	Yes	No	No	No

As nouns, corp is a hypernym of closed corporation; that is, corp is a word with a broader meaning than closed corporation:

closed corporation: a corporation owned by a few people; shares have no public market
corp: a business firm whose articles of incorporation have been approved in some state

Other hypernyms of closed corporation include corporation.

closed corporation (noun)	corp (noun)
a corporation owned by a few people; shares have no public market	a business firm whose articles of incorporation have been approved in some state