Jersey vs New Jersey

Jersey and New Jersey both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jersey	Yes	No	No	No
New Jersey	Yes	No	No	No

As nouns, Jersey and New Jersey are synonyms defined as:

Jersey and New Jersey: a Mid-Atlantic state on the Atlantic; one of the original 13 colonies

Other synonyms of Jersey include Garden State, N.J., NJ.

Jersey (noun)	New Jersey (noun)
a breed of dairy cattle developed on the island of Jersey	a Mid-Atlantic state on the Atlantic; one of the original 13 colonies
a Mid-Atlantic state on the Atlantic; one of the original 13 colonies	one of the British colonies that formed the United States, with capital Elizabethtown, Perth Amboy, or Burlington
the largest of the Channel Islands