PAC vs political action committee

PAC and political action committee both are nouns.

Word	Noun	Adjective	Verb	Adverb
PAC	Yes	No	No	No
political action committee	Yes	No	No	No

As nouns, PAC and political action committee are synonyms defined as:

PAC and political action committee: committee formed by a special-interest group to raise money for their favorite political candidates

PAC (noun)	political action committee (noun)
committee formed by a special-interest group to raise money for their favorite political candidates	committee formed by a special-interest group to raise money for their favorite political candidates