political action committee vs PAC

political action committee and PAC both are nouns.

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

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

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

political action committee (noun)	PAC (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