Fannie Mae vs Federal National Mortgage Association

Fannie Mae and Federal National Mortgage Association both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fannie Mae	Yes	No	No	No
Federal National Mortgage Association	Yes	No	No	No

As nouns, Fannie Mae and Federal National Mortgage Association are synonyms defined as:

Fannie Mae and Federal National Mortgage Association: a federally chartered corporation that purchases mortgages

Other synonyms of Fannie Mae include FNMA.

Fannie Mae (noun)	Federal National Mortgage Association (noun)
a federally chartered corporation that purchases mortgages	a federally chartered corporation that purchases mortgages