ocean

play
noun, often attributive \ˈō-shən\

Definition of ocean

  1. 1a :  the whole body of salt water that covers nearly three fourths of the surface of the earthb :  any of the large bodies of water (such as the Atlantic Ocean) into which the great ocean is divided

  2. 2 :  a very large or unlimited space or quantity

Examples of ocean in a Sentence

  1. We've sailed across hundreds of miles of ocean.

  2. the Pacific and Indian oceans

Recent Examples of ocean from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ocean'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of ocean

Middle English occean, from Anglo-French, from Latin oceanus, from Greek Ōkeanos, a river thought of as encircling the earth, ocean

Other Oceanography Terms



OCEAN Defined for English Language Learners

ocean

play
noun

Definition of ocean for English Language Learners

  • : the salt water that covers much of the Earth's surface

  • : one of the five large areas of salt water that cover much of the Earth's surface

  • : a very large number or amount of something


OCEAN Defined for Kids

ocean

play
noun \ˈō-shən\

Definition of ocean for Students

  1. 1 :  the whole body of salt water that covers nearly three fourths of the earth

  2. 2 :  one of the large bodies of water into which the larger body that covers the earth is divided



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