seal
US /siːl/
UK /siːl/

1.
sello, junta
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.
El sello roto causó la fuga.
•
Make sure the seal on the container is tight.
Asegúrate de que el sello del recipiente esté apretado.
2.
sello, lacra
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 carta del rey llevaba su sello real.
•
The document was authenticated with an official seal.
El documento fue autenticado con un sello oficial.
3.
foca, lobo marino
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.
Vimos una foca tomando el sol en las rocas.
•
Seals are excellent swimmers.
Las focas son excelentes nadadoras.
1.
sellar, cerrar herméticamente
fasten or close securely, so that air, liquid, or other contents cannot enter or escape
:
•
Please seal the envelope before mailing it.
Por favor, sella el sobre antes de enviarlo.
•
The jar was perfectly sealed to keep the contents fresh.
El frasco estaba perfectamente sellado para mantener el contenido fresco.
2.
sellar, ratificar
formally certify or approve (something)
:
•
The deal was sealed with a handshake.
El acuerdo se selló con un apretón de manos.
•
Their fate was sealed when the enemy attacked.
Su destino quedó sellado cuando el enemigo atacó.