sea /ˈsi/
  海,海洋,大浪,大量,浩瀚,寬廣
  sea
  海
  Sea n.
  1. 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; as, the Mediterranean Sea; the Sea of Marmora; the North Sea; the Carribean Sea.
  2. An inland body of water, esp. if large or if salt or brackish; as, the Caspian Sea; the Sea of Aral; sometimes, a small fresh-water lake; as, the Sea of Galilee.
  3. The ocean; the whole body of the salt water which covers a large part of the globe.
     I marvel how the fishes live in the sea.   --Shak.
  Ambiguous between sea and land
  The river horse and scaly crocodile.   --Milton.
  4. 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; as, there was a high sea after the storm; the vessel shipped a sea.
  5. Jewish Antiq. A great brazen laver in the temple at Jerusalem; -- so called from its size.
     He made a molten sea of ten cubits from brim to brim, round in compass, and five cubits the height thereof.   --2 Chron. iv. 2.
  6. Fig.: Anything resembling the sea in vastness; as, a sea of glory.
     All the space . . . was one sea of heads.   --Macaulay.
  Note: ☞ Sea is often used in the composition of words of obvious signification; as, sea-bathed, sea-beaten, sea-bound, sea-bred, sea-circled, sealike, sea-nursed, sea-tossed, sea-walled, sea-worn, and the like. It is also used either adjectively or in combination with substantives; as, sea bird, sea-bird, or seabird, sea acorn, or sea-acorn.
  At sea, upon the ocean; away from land; figuratively, without landmarks for guidance; lost; at the mercy of circumstances. “To say the old man was at sea would be too feeble an expression.” --G. W. Cable
  At full sea at the height of flood tide; hence, at the height. “But now God's mercy was at full sea.” --Jer. Taylor.
  Beyond seas, or Beyond the sea or Beyond the seas Law, out of the state, territory, realm, or country. --Wharton.
  Half seas over, half drunk. [Colloq.] --Spectator.
  Heavy sea, a sea in which the waves run high.
  Long sea, a sea characterized by the uniform and steady motion of long and extensive waves.
  Short sea, a sea in which the waves are short, broken, and irregular, so as to produce a tumbling or jerking motion.
  To go to sea, to adopt the calling or occupation of a sailor.
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  sea
       adj : relating to or characteristic of or occurring on the sea or
             ships; "sea stories"; "sea smells"; "sea traffic" [syn:
              sea(a)] [ant: air(a), land(a)]
       n 1: a division of an ocean or a large body of salt water
            partially enclosed by land
       2: anything apparently limitless in quantity or volume [syn: ocean]
       3: turbulent water with swells of considerable size; "heavy
          seas"