ocean noun

ADJ. deep | vast | great exploring the depths of the three great oceans | open A storm started up once we got out into the open ocean. | tropical, warm | southern penguins of the southern oceans

VERB + OCEAN cross, sail | explore

OCEAN + NOUN depths the darkness of the ocean depths | surface | bed, floor | basin | water | wave a life on the ocean wave (= at sea) | current | voyage | liner

PREP. across the ~ trade across the Atlantic Ocean | in the ~ Various toxic substances have been dumped in the ocean.

PHRASES the bottom/depths/middle/surface of the ocean, the oceans of the world great ships that sailed the oceans of the world