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WordReference Random House Learner's Dictionary of American English © 2024o•cean /ˈoʊʃən/USA pronunciation n. - Oceanography[uncountable* the + ~] the vast body of salt water that covers almost three-fourths of the earth's surface.
- Oceanography[countable] any of the divisions of this body, commonly known as the Atlantic, the Pacific, the Indian, the Arctic, and the Antarctic oceans.
- a vast quantity:[countable]oceans of tears.
WordReference Random House Unabridged Dictionary of American English © 2024o•cean (ō′shən),USA pronunciation n. - Oceanographythe vast body of salt water that covers almost three fourths of the earth's surface.
- Oceanographyany of the geographical divisions of this body, commonly given as the Atlantic, Pacific, Indian, Arctic, and Antarctic oceans.
- a vast expanse or quantity:an ocean of grass.
- Greek ōkeanós, Ōkeanós
- Latin ōceanus, special use of Ōceanus Oceanus
- Old French)
- Middle English ocean(e) (1250–1300
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