Gulf of Saint Lawrence vs Atlantic Ocean

Gulf of Saint Lawrence and Atlantic Ocean both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gulf of Saint Lawrence	Yes	No	No	No
Atlantic Ocean	Yes	No	No	No

Gulf of Saint Lawrence (noun)	Atlantic Ocean (noun)
an arm of the northwest Atlantic Ocean off the southeastern coast of Canada	the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east