seal - noun

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

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

the pelt or fur (especially the underfur) of a seal

a member of a Naval Special Warfare unit who is trained for unconventional warfare

a stamp affixed to a document (as to attest to its authenticity or to seal it)

an indication of approved or superior status

a finishing coat applied to exclude moisture

fastener that provides a tight and perfect closure

any of numerous marine mammals that come on shore to breed; chiefly of cold regions

seal - verb

• make tight; secure against leakage
• close with or as if with a seal
• decide irrevocably
• affix a seal to
• cover with varnish
• hunt seals

seal - thesaurus

cachet   sealskin   stamp   varnish