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Syllabification: o·cean
Pronunciation: /ˈōSHən

Definition of ocean in English:


1A very large expanse of sea, in particular, each of the main areas into which the sea is divided geographically: the Atlantic Ocean
More example sentences
  • At that point, the oceans ceased to be geographical barriers, and like the smaller seas before them opened up into highways.
  • They are found in the tropical and subtropical waters of oceans around the world.
  • This area was one of the most remote and least traveled expanses of the world oceans.
informal drink, briny, chuck, salt chuck
literary deep, waves, main
1.1 (usually the ocean) North American The sea: [as modifier]: the ocean floor
More example sentences
  • This guy up here is a very close relative of the roly-poly, only it lives in the deep sea along the ocean floor.
  • The pole was anchored solidly to the floor of the ocean and rose about twenty feet into the air.
  • Discarded nets drift through the sea and continue to kill fish on the ocean floor.
1.2 (an ocean of/oceans of) informal A very large expanse or quantity: she had oceans of energy
More example sentences
  • The Holy Qur' an is an ocean of divine knowledge.
  • This image marks a time in history not only for Yes, but a passage in the oceans of time.
a lot, a great/good deal, plenty, an abundance, a great/large amount
informal lots, tons, loads, buttloads, heaps, scads, oodles, gobs
vulgar slang shitload


Middle English: from Old French occean, via Latin from Greek ōkeanos 'great stream encircling the earth's disk'. “The ocean” originally denoted the whole body of water regarded as encompassing the earth's single land mass.



(also -wards) adverb& adjective
Example sentences
  • But it counts, and the flow of our destruction doesn't falter; it flows ever oceanward.
  • Swimming oceanwards from Malta's Inland Sea, I decided to swap masks for a second one I had in my BC pocket.
  • The ‘neck area’ is the last domain oceanward, at the foot of the continental slope.

Definition of ocean in:

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