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ocean

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oceans

Main Entry:: ocean
Pronunciation:: \ˈō-shən\
Function:: noun
Usage:: often attributive
Etymology:: Middle English occean, from Anglo-French, from Latin oceanus, from Greek Ōkeanos, a river thought of as encircling the earth, ocean
Date:: 14th century

1 a: the whole body of salt water that covers nearly three fourths of the surface of the earth b: any of the large bodies of water (as the Atlantic Ocean) into which the great ocean is divided2: a very large or unlimited space or quantity

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