| Noun | 1. | seal - fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letterslac - resinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax | |
| 2. | seal - a device incised to make an impression; used to secure a closing or to authenticate documentsbulla - the round leaden seal affixed to a papal bull device - any ornamental pattern or design (as in embroidery) great seal - the principal seal of a government, symbolizing authority or sovereignty signet - a seal (especially one used to mark documents officially) | |
| 3. | seal - the pelt or fur (especially the underfur) of a seal; "a coat of seal"fur, pelt - the dressed hairy coat of a mammal | |
| 4. | SEAL - a member of a Naval Special Warfare unit who is trained for unconventional warfare; "SEAL is an acronym for Sea Air and Land" | |
| 5. | seal - a stamp affixed to a document (as to attest to its authenticity or to seal it); "the warrant bore the sheriff's seal"stamp, impression - a symbol that is the result of printing; "he put his stamp on the envelope" | |
| 6. | seal - an indication of approved or superior status | |
| 7. | seal - a finishing coat applied to exclude moisturecoating, coat - a thin layer covering something; "a second coat of paint" undercoat, underseal - seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion | |
| 8. | seal - fastener that provides a tight and perfect closurebreak seal - a seal that must be broken when first used and cannot easily be resealed; "it was stored in a tube with a break seal" gasket - seal consisting of a ring for packing pistons or sealing a pipe joint piston ring - seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall washer - seal consisting of a flat disk placed to prevent leakage | |
| 9. | seal - any of numerous marine mammals that come on shore to breed; chiefly of cold regionseared seal - pinniped mammal having external ear flaps and hind limbs used for locomotion on land; valued for its soft underfur earless seal, hair seal, true seal - any of several seals lacking external ear flaps and having a stiff hairlike coat with hind limbs reduced to swimming flippers | |
| Verb | 1. | seal - close with or as if with a seal; "She sealed the letter with hot wax"seal off, seal - make tight; secure against leakage; "seal the windows" fill up, close - fill or stop up; "Can you close the cracks with caulking?" unseal - break the seal of; "He unsealed the letter" | |
| 2. | seal - make tight; secure against leakage; "seal the windows"shut, close - move so that an opening or passage is obstructed; make shut; "Close the door"; "shut the window" seal - close with or as if with a seal; "She sealed the letter with hot wax" reseal - seal again; "reseal the bottle after using the medicine" waterproof - make watertight; "Waterproof the coat" caulk, calk - seal with caulking; "caulk the window" pack - seal with packing; "pack the faucet" | |
| 3. | seal - decide irrevocably; "sealing dooms" | |
| 4. | seal - affix a seal to; "seal the letter" | |
| 5. | seal - cover with varnishcoat, surface - put a coat on; cover the surface of; furnish with a surface; "coat the cake with chocolate" shellac - cover with shellac; "She wanted to shellac the desk to protect it from water spots" | |
| 6. | seal - hunt sealshunt, hunt down, track down, run - pursue for food or sport (as of wild animals); "Goering often hunted wild boars in Poland"; "The dogs are running deer"; "The Duke hunted in these woods" | |