1. (noun) sealing wax, seal
fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
Synonyms: stamp, seal, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
2. (noun) seal, stamp
a device incised to make an impression; used to secure a closing or to authenticate documents
Synonyms: postage, tender, cachet, impression, mould, revenue stamp, mold, cast, seal, stamp, pestle, sealskin, seal of approval, postage stamp, legal tender, sealing wax
Antonyms: unseal
3. (noun) seal, sealskin
the pelt or fur (especially the underfur) of a seal
Synonyms: seal, stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
4. (noun) Navy SEAL, SEAL
a member of a Naval Special Warfare unit who is trained for unconventional warfare
Synonyms: stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
5. (noun) seal
a stamp affixed to a document (as to attest to its authenticity or to seal it)
Synonyms: stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
6. (noun) cachet, seal, seal of approval
an indication of approved or superior status
Synonyms: lettre de cachet, stamp, seal, seal of approval, sealing wax, cachet, sealskin
Antonyms: unseal
7. (noun) seal
a finishing coat applied to exclude moisture
Synonyms: stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
8. (noun) seal
fastener that provides a tight and perfect closure
Synonyms: stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
9. (verb) seal
any of numerous marine mammals that come on shore to breed; chiefly of cold regions
Synonyms: stamp, sealskin, sealing wax, seal of approval, cachet
Antonyms: unseal
10. (verb) seal, seal off
make tight; secure against leakage
Synonyms: varnish, blockade, seal, seal off
Antonyms: unseal
11. (verb) seal
close with or as if with a seal
Synonyms: varnish, seal off
Antonyms: unseal
12. (verb) seal
decide irrevocably
Synonyms: varnish, seal off
Antonyms: unseal
13. (verb) seal
affix a seal to
Synonyms: varnish, seal off
Antonyms: unseal
14. (verb) varnish, seal
cover with varnish
Synonyms: varnish, seal, seal off
Antonyms: unseal
15. (verb) seal
hunt seals
Synonyms: varnish, seal off
Antonyms: unseal
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Synonyms and Antonyms of seal 
