Indian Ocean vs Timor Sea

Indian Ocean and Timor Sea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian Ocean	Yes	No	No	No
Timor Sea	Yes	No	No	No

Indian Ocean (noun)	Timor Sea (noun)
the 3rd largest ocean; bounded by Africa on the west, Asia on the north, Australia on the east and merging with the Antarctic Ocean to the south	an arm of the eastern Indian Ocean between Timor and northern Australia