Atlantic Ocean vs Mid-Atlantic Ridge

Atlantic Ocean and Mid-Atlantic Ridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
Atlantic Ocean	Yes	No	No	No
Mid-Atlantic Ridge	Yes	No	No	No

Atlantic Ocean (noun)	Mid-Atlantic Ridge (noun)
the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east	a very long narrow elevation on the ocean floor that runs all the way from Iceland in the North Atlantic to Bouvet Island in the South Atlantic