Fannie Mae vs corporation

Fannie Mae and corporation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fannie Mae	Yes	No	No	No
corporation	Yes	No	No	No

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

Fannie Mae: a federally chartered corporation that purchases mortgages
corporation: a business firm whose articles of incorporation have been approved in some state

Other hypernyms of Fannie Mae include corp.

Fannie Mae (noun)	corporation (noun)
a federally chartered corporation that purchases mortgages	slang for a paunch
	a business firm whose articles of incorporation have been approved in some state