Pacific Ocean vs Pacific

Pacific Ocean and Pacific both are nouns.

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

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

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

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