Pacific vs Pacific Ocean

Pacific and Pacific Ocean both are nouns.

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

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

Pacific (noun)	Pacific Ocean (noun)
the largest ocean in the world	the largest ocean in the world

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