corp vs corporation

corp and corporation both are nouns.

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

As nouns, corp and corporation are synonyms defined as:

corp and corporation: a business firm whose articles of incorporation have been approved in some state

corp (noun)	corporation (noun)
a business firm whose articles of incorporation have been approved in some state	slang for a paunch
	a business firm whose articles of incorporation have been approved in some state