sealed
v.v. to close something tightly so that air, water, or other things cannot get in or out. You also use this to describe finishing a deal or making something official.
v. to close or fasten a container or opening securely to prevent the passage of air or liquid; to conclude or finalise an agreement. Transitive — requires a direct object.
She sealed the envelope before going to the post office.
The workers sealed the windows with plastic to keep the cold air out during the winter storm.
The two nations finally sealed the trade agreement after months of intense negotiations, ensuring a stable economic partnership for the next decade.
The verb is transitive and takes a direct object. Often used in the passive voice when describing containers or documents.
He sealed with the letterHe sealed the letterSeal is a transitive verb and must be followed directly by the object it is closing.