sea

noun11

1. •
   a wide part of the world that is covered with salt water

   • God moves in a mysterious way, / His wonders to perform; / He plants his footsteps in the sea, / And rides upon the storm. — 1780
2. •
   The ocean; the continuous body of salt water covering a majority of the Earth's surface.

   • These shal ye eat, of all that are in the waters: whatsoeuer hath finnes and scales in the waters, in the seas, and in the riuers, them shall ye eate. — 1611
3. •
   A body of salt water smaller than an ocean, generally forming part of, or connecting with, an ocean or a larger sea.
4. •
   (figurative) Anything resembling the vastness or turbulence of the sea in mass, size or quantity.

   • The beck is crossed by a pretty ford and a number of bridges, and in spring the cottages look out over a dancing sea of daffodils. — 1980
5. •
   [before a noun, in compounds] Living or used in or on the sea; of, near, or like the sea.

   • Seaman, sea gauge, sea monster, sea horse, sea level, seaworthy, seaport, seaboard, etc.
6. •
   A lake, especially if large or if salty or brackish.
7. •
   A very large lake of liquid hydrocarbon.
8. •
   A single wave; billow.
9. •
   The swell of the sea, especially when high or rough.

   • “Where can they be?” he cried. “They cannot have gone down, for there has been no sea, and they were afloat after the yacht sank—I saw them all.” — 1913
10. •
    A large, dark plain of rock; a mare.

    • The Apollo 11 mission landed in the Sea of Tranquility.
11. •
    A constant flux of gluons splitting into quarks, which annihilate to produce further gluons.

noun1

1. •
   Initialism of Strategic Environmental Assessment.