SEAL

v. fasten, secure, close tightly; imprint, stamp; approve, authorize; determine, set, decide

n. any of several species of carnivorous marine mammals from the suborder Pinnipedia; imprint; stamp, insignia; material used to tightly close an opening or object; mark, symbol; sign of approval or authorization

Seal or SEAL may refer to things with a variety of meanings: Seals are cute fluffy animals
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The United States Navy Sea, Air and Land (SEAL) forces are the elite Special Operations Forces (or Special forces) of the U.S. Navy, employed in unconventional warfare, guerrilla warfare, foreign internal defense, direct action, counter-terrorism, specific enemy snatch and grab (kidnapping), specific enemy assassination, hostage rescue, and special reconnaissance operations.
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Noun
1. a member of a Naval Special Warfare unit who is trained for unconventional warfare; "SEAL is an acronym for Sea Air and Land"
(synonym) Navy SEAL
(hypernym) bluejacket, navy man, sailor, sailor boy
(member-holonym) Naval Special Warfare, NSW
(classification) military, armed forces, armed services, military machine, war machine

Noun
1. fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
(synonym) sealing wax
(hypernym) fastener, fastening, holdfast, fixing
(substance-meronym) lac
2. a device incised to make an impression; used to secure a closing or to authenticate documents
(synonym) stamp
(hypernym) device
(hyponym) bulla
3. the pelt or fur (especially the underfur) of a seal; "a coat of seal"
(synonym) sealskin
(hypernym) fur, pelt
4. a stamp affixed to a document (as to attest to its authenticity or to seal it); "the warrant bore the sheriff's seal"
(hypernym) stamp, impression
5. an indication of approved or superior status
(synonym) cachet, seal of approval
(hypernym) award, accolade, honor, honour, laurels
6. a finishing coat applied to exclude moisture
(hypernym) coating, coat
(hyponym) undercoat, underseal
(derivation) varnish
7. fastener that provides a tight and perfect closure
(hypernym) fastener, fastening, holdfast, fixing
(hyponym) break seal
(derivation) seal off
8. any of numerous marine mammals that come on shore to breed; chiefly of cold regions
(hypernym) pinniped mammal, pinniped, pinnatiped
(hyponym) crabeater seal, crab-eating seal
Verb
1. close with or as if with a seal; "She sealed the letter with hot wax"
(antonym) unseal
(hypernym) close, fill up
(entail) fasten, fix, secure
(verb-group) seal off
2. make tight; secure against leakage; "seal the windows"
(synonym) seal off
(hypernym) close, shut
(hyponym) reseal
3. decide irrevocably; "sealing dooms"
(hypernym) decide, make up one's mind, determine
(derivation) cachet, seal of approval
4. affix a seal to; "seal the letter"
(hypernym) affix, stick on
5. cover with varnish
(synonym) varnish
(hypernym) coat, surface
(hyponym) shellac
6. hunt seals
(hypernym) hunt, run, hunt down, track down

(v. t.)
To set or affix a seal to; hence, to authenticate; to confirm; to ratify; to establish; as, to seal a deed.
  

(v. t.)
To mark with a stamp, as an evidence of standard exactness, legal size, or merchantable quality; as, to seal weights and measures; to seal silverware.
  

(v. t.)
To fix, as a piece of iron in a wall, with cement, plaster, or the like.
  

(v. t.)
To fasten with a seal; to attach together with a wafer, wax, or other substance causing adhesion; as, to seal a letter.
  

(v. t.)
To close by means of a seal; as, to seal a drainpipe with water. See 2d Seal, 5.
  

(v. t.)
Hence, to shut close; to keep close; to make fast; to keep secure or secret.
  

(v. t.)
Among the Mormons, to confirm or set apart as a second or additional wife.
  

(v. i.)
To affix one's seal, or a seal.
  

(n.)
Wax, wafer, or other tenacious substance, set to an instrument, and impressed or stamped with a seal; as, to give a deed under hand and seal.
  

(n.)
That which seals or fastens; esp., the wax or wafer placed on a letter or other closed paper, etc., to fasten it.
  

(n.)
That which confirms, ratifies, or makes stable; that which authenticates; that which secures; assurance.
  

(n.)
Any aquatic carnivorous mammal of the families Phocidae and Otariidae.
  

(n.)
An engraved or inscribed stamp, used for marking an impression in wax or other soft substance, to be attached to a document, or otherwise used by way of authentication or security.
  

(n.)
An arrangement for preventing the entrance or return of gas or air into a pipe, by which the open end of the pipe dips beneath the surface of water or other liquid, or a deep bend or sag in the pipe is filled with the liquid; a draintrap.
  

Semantics-directed Environment Adaptation Language.
ftp://ftp.cwi.nl/pub/gipe/0092b.ps.Z.