from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The entire body of salt water that covers more than 70 percent of the earth's surface.
  • n. Any of the principal divisions of the ocean, including the Atlantic, Pacific, Indian, Arctic, and Antarctic oceans.
  • n. A great expanse or amount: "that ocean of land which is Russia” ( Henry A. Kissinger).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of the five large bodies of water separating the continents.
  • n. Water belonging to an ocean.
  • n. An immense expanse; any vast space or quantity without apparent limits.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to the main or great sea
  • n. The whole body of salt water which covers more than three fifths of the surface of the globe; -- called also the sea, or great sea.
  • n. One of the large bodies of water into which the great ocean is regarded as divided, as the Atlantic, Pacific, Indian, Arctic and Antarctic oceans.
  • n. An immense expanse; any vast space or quantity without apparent limits

from The Century Dictionary and Cyclopedia

  • n. The body of water which envelops the earth, and covers almost three fourths of its surface with a mean depth — as nearly as can be estimated at the present time — of less than 12,500 feet.
  • n. Something likened to the ocean; also, a great quantity: as, an ocean of trouble.
  • Of or pertaining to the main or great sea.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. anything apparently limitless in quantity or volume
  • n. a large body of water constituting a principal part of the hydrosphere


Middle English occean, from Old French, from Latin ōceanus, from Greek Ōkeanos, the god Oceanus, a great river encircling the earth.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old French occean (later reborrowed from Middle French ocean), from Latin Oceanus, from Ancient Greek Ὠκεανός (Ōkeanós, "Oceanus", a water deity). (Wiktionary)



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  • The H.M.S. Ocean was listed as a "transport" captured at Yorktown in 1781. I wonder if, when it was sailing the Atlantic, it was camouflaged.

    October 29, 2007