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

  • n. The continuous body of salt water covering most of the earth's surface, especially this body regarded as a geophysical entity distinct from earth and sky.
  • n. A tract of water within an ocean.
  • n. A relatively large body of salt water completely or partially enclosed by land.
  • n. A relatively large landlocked body of fresh water.
  • n. The condition of the ocean's surface with regard to its course, flow, swell, or turbulence: a rising sea; choppy seas.
  • n. A wave or swell, especially a large one: a 40-foot sea that broke over the stern.
  • n. Something that suggests the ocean in its overwhelming sweep or vastness: a sea of controversy.
  • n. Seafaring as a way of life.
  • n. Astronomy A lunar mare.
  • idiom at sea On the sea, especially on a sea voyage.
  • idiom at sea In a state of confusion or perplexity; at a loss.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A large body of salty water. (Major seas are known as oceans.)
  • n. A large number or quantity; a vast amount.

from the GNU version of the Collaborative International Dictionary of English

  • n. One of the larger bodies of salt water, less than an ocean, found on the earth's surface; a body of salt water of second rank, generally forming part of, or connecting with, an ocean or a larger sea.
  • n. An inland body of water, esp. if large or if salt or brackish; ; sometimes, a small fresh-water lake.
  • n. The ocean; the whole body of the salt water which covers a large part of the globe.
  • n. The swell of the ocean or other body of water in a high wind; motion or agitation of the water's surface; also, a single wave; a billow.
  • n. A great brazen laver in the temple at Jerusalem; -- so called from its size.
  • n. Fig.: Anything resembling the sea in vastness.

from The Century Dictionary and Cyclopedia

  • n. The salt waters that cover the greater part of the earth's surface; the ocean.
  • n. A great body of salt water; a more or less distinctly limited or landlocked part of the ocean having considerable dimensions.
  • n. Any widely extended or overwhelming mass or quantity; an ocean; a flood: as, a sea of difficulties; a sea of upturned faces.
  • n. The swell of the ocean, or the direction of the waves: as, there was a heavy sea on; to keep the boat's head to the sea.
  • n. A large wave; a billow; a surge: as, to ship a sea.
  • n. Out on the ocean, and out of sight of land; hence, in the condition of a mariner who has lost his bearings; in a state of uncertainty or error; astray; wide of the mark; quite wrong: as, you are altogether at sea in your guesses.
  • n. By the margin of the sea; on the sea-coast.
  • n. An obsolete spelling of see.

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

  • n. anything apparently limitless in quantity or volume
  • n. turbulent water with swells of considerable size
  • n. a division of an ocean or a large body of salt water partially enclosed by land


Middle English see, from Old English .
(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English see, from Old English  ("sea, lake"), from Proto-Germanic *saiwiz (compare West Frisian see, Dutch zee, German See), probably from Proto-Indo-European *sh₂ei-u̯o- 'to be fierce, afflict' (compare Latin saevus ("wild, fierce"), Tocharian saiwe ("itch"), Latvian sievs, sīvs ("sharp, biting")). More to sore. (Wiktionary)


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