Atlantic Ocean vs Atlantic

Atlantic Ocean and Atlantic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Atlantic Ocean	Yes	No	No	No
Atlantic	Yes	Yes	No	No

As nouns, Atlantic Ocean and Atlantic are synonyms defined as:

Atlantic Ocean and Atlantic: the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east

Atlantic Ocean (noun)	Atlantic (noun)
the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east	the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east

Atlantic Ocean (adjective)	Atlantic (adjective)
	relating to or bordering the Atlantic Ocean