envelope

• Contenant plat, généralement rectangulaire et en papier, utilisé pour insérer une lettre ou un document à envoyer par la poste. Peut aussi désigner une enveloppe protectrice ou une pochette.

A flat, usually rectangular paper container used for enclosing a letter or document for mailing.

1. Paper container for lettersA2formal

   A flat, usually rectangular paper container used to enclose a letter or document for mailing.

   Enveloppe postale

   • She sealed the letter in an envelope.
   • Please write the address clearly on the envelope.
   • He tore open the envelope to read the invitation.

   Synonymescoverwrapper

2. Something that surrounds or enclosesB2formal

   A covering or container that surrounds something.

   Enveloppe (ce qui entoure)

   • The gas envelope around the planet is very thin.
   • The building is protected by a glass envelope.
   • The envelope of air around the Earth is called the atmosphere.

   Synonymescasingcloakcoatingcontainercoveringhousingsheathshellshroudsurroundveilwrapper

   Antonymescontentcoreinterior