seal
US /siːl/
UK /siːl/

1.
sigillo, guarnizione
a device or substance that is used to join two things together so as to prevent them from coming apart or to prevent anything from passing between them
:
•
The broken seal caused the leak.
Il sigillo rotto ha causato la perdita.
•
Make sure the seal on the container is tight.
Assicurati che il sigillo sul contenitore sia stretto.
2.
sigillo, timbro
a piece of wax, lead, or other material with an individual design stamped into it, attached to a document as a mark of authenticity or used to close a letter or package
:
•
The king's letter bore his royal seal.
La lettera del re portava il suo sigillo reale.
•
The document was authenticated with an official seal.
Il documento è stato autenticato con un sigillo ufficiale.
3.
foca, otaria
a carnivorous marine mammal with flippers, a streamlined body, and a layer of blubber, able to live on land and in water
:
•
We saw a seal basking on the rocks.
Abbiamo visto una foca crogiolarsi sulle rocce.
•
Seals are excellent swimmers.
Le foche sono nuotatori eccellenti.
1.
sigillare, chiudere ermeticamente
fasten or close securely, so that air, liquid, or other contents cannot enter or escape
:
•
Please seal the envelope before mailing it.
Si prega di sigillare la busta prima di spedirla.
•
The jar was perfectly sealed to keep the contents fresh.
Il barattolo era perfettamente sigillato per mantenere il contenuto fresco.
2.
sigillare, ratificare
formally certify or approve (something)
:
•
The deal was sealed with a handshake.
L'accordo è stato sigillato con una stretta di mano.
•
Their fate was sealed when the enemy attacked.
Il loro destino fu segnato quando il nemico attaccò.