Federal National Mortgage Association vs FNMA

Federal National Mortgage Association and FNMA both are nouns.

Word	Noun	Adjective	Verb	Adverb
Federal National Mortgage Association	Yes	No	No	No
FNMA	Yes	No	No	No

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

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

Other synonyms of Federal National Mortgage Association include Fannie Mae.

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