Empire State vs New York State

Empire State and New York State both are nouns.

Word	Noun	Adjective	Verb	Adverb
Empire State	Yes	No	No	No
New York State	Yes	No	No	No

As nouns, Empire State and New York State are synonyms defined as:

Empire State and New York State: a Mid-Atlantic state; one of the original 13 colonies, with capital Albany

Other synonyms of Empire State include N.Y., New York, NY.

Empire State (noun)	New York State (noun)
a Mid-Atlantic state; one of the original 13 colonies, with capital Albany	a Mid-Atlantic state; one of the original 13 colonies, with capital Albany