Pa. vs Pennsylvania

Pa. and Pennsylvania both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pa.	Yes	No	No	No
Pennsylvania	Yes	No	No	No

As nouns, Pa. and Pennsylvania are synonyms defined as:

Pa. and Pennsylvania: a Mid-Atlantic state; one of the original 13 colonies, with capital Harrisburg

Other synonyms of Pa. include Keystone State, PA.

Pa. (noun)	Pennsylvania (noun)
a Mid-Atlantic state; one of the original 13 colonies, with capital Harrisburg	a university in Philadelphia, Pennsylvania
	a Mid-Atlantic state; one of the original 13 colonies, with capital Harrisburg
	one of the British colonies that formed the United States, with capital Philadelphia