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Definitions of seal
  1. noun
    a member of a Naval Special Warfare unit who is trained for unconventional warfare

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  2. noun
    fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters

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  3. verb
    make tight; secure against leakage
    "seal the windows"

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  4. noun
    a device incised to make an impression; used to secure a closing or to authenticate documents

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  5. noun
    the pelt or fur (especially the underfur) of a seal
    "a coat of seal"

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  6. verb
    cover with varnish

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  7. noun
    an indication of approved or superior status
  8. verb
    affix a seal to
    "seal the letter"
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  9. noun
    a finishing coat applied to exclude moisture
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  10. noun
    any of numerous marine mammals that come on shore to breed; chiefly of cold regions
  11. noun
    a stamp affixed to a document (as to attest to its authenticity or to seal it)
    "the warrant bore the sheriff's seal"
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  12. verb
    close with or as if with a seal
    "She sealed the letter with hot wax"
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  13. verb
    decide irrevocably
    "sealing dooms"
  14. noun
    fastener that provides a tight and perfect closure
  15. verb
    hunt seals
Definition that contains seal
  • pack seal with packing
  • canned sealed in a can or jar
  • boiler sealed vessel where water is converted to steam
  • washer seal consisting of a flat disk placed to prevent leakage
  • gasket seal consisting of a ring for packing pistons or sealing a pipe joint
  • tinned sealed in a can or jar
  • caulk seal with caulking
  • reseal seal again
  • undercoat seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion
  • underseal seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion
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