National Rifle Association vs NRA

National Rifle Association and NRA both are nouns.

Word	Noun	Adjective	Verb	Adverb
National Rifle Association	Yes	No	No	No
NRA	Yes	No	No	No

As nouns, National Rifle Association and NRA are synonyms defined as:

National Rifle Association and NRA: a powerful lobby that advocates the right to own and bear arms and rejects any gun regulation by the government

National Rifle Association (noun)	NRA (noun)
a powerful lobby that advocates the right to own and bear arms and rejects any gun regulation by the government	a powerful lobby that advocates the right to own and bear arms and rejects any gun regulation by the government