Ocean State vs Rhode Island

Ocean State and Rhode Island both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ocean State	Yes	No	No	No
Rhode Island	Yes	No	No	No

As nouns, Ocean State and Rhode Island are synonyms defined as:

Ocean State and Rhode Island: a state in New England; one of the original 13 colonies; the smallest state

Other synonyms of Ocean State include Little Rhody, R.I., RI.

Ocean State (noun)	Rhode Island (noun)
a state in New England; one of the original 13 colonies; the smallest state	a state in New England; one of the original 13 colonies; the smallest state
	one of the British colonies that formed the United States, with capital Providence