1. A postal service that guarantees faster delivery of letters, documents, or packages compared to standard mail
I sent the documents via express mail to ensure they arrive by tomorrow.
Enviei os documentos por correspondência expressa para garantir que cheguem amanhã.
2. Mail or correspondence that is prioritized for quick delivery
The correspondence expressa service costs more but saves time.
O serviço de correspondência expressa custa mais, mas economiza tempo.