Garden State vs New Jersey

Garden State and New Jersey both are nouns.

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

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

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

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

Garden State (noun)	New Jersey (noun)
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