Wisconsin vs WI

Wisconsin and WI both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wisconsin	Yes	No	No	No
WI	Yes	No	No	No

As nouns, Wisconsin and WI are synonyms defined as:

Other synonyms of Wisconsin include Badger State, Wis., Wisc..

Wisconsin (noun)	WI (noun)
a midwestern state in north central United States	a midwestern state in north central United States
a tributary of the Mississippi River in Wisconsin