seal[Anglais]

nom
1 : fastener that provides a tight and perfect closure
2 : fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
3 : a member of a Naval Special Warfare unit who is trained for unconventional warfare
4 : an indication of approved or superior status
verbe
1 : make tight; secure against leakage
2 : cover with varnish