to close an envelope by sticking its edges together
Please seal the envelope after putting the letter inside.
to close a container tightly so nothing can get in or out
Make sure to seal the jar to keep the food fresh.
to make something final and cannot be changed
They signed the contract to seal the agreement.
to cover a surface with a protective layer
We need to seal the wood to protect it from water.
to block a place so no one can pass
Police sealed the area after the accident.
an official mark on a document to show it is real
The document has the king's seal on it.
something that makes an agreement final
The handshake was the seal of their promise.
a material that closes a container tightly
Check the seal on the bottle before drinking.
a wax or paper mark that must be broken to open something
He broke the seal to open the ancient letter.
a tool used to make an official mark
The king used his seal to mark important papers.
a sea animal that lives on coasts and eats fish
We saw a seal swimming near the beach.