1. To prevent or obstruct the flow of information or messages between parties
The company decided to block communication with the competitor to protect trade secrets.
A empresa decidiu bloquear a comunicação com o concorrente para proteger segredos comerciais.
2. To restrict or disable channels of interaction, such as phone calls, emails, or social media messages
She had to block communication from an abusive contact on all platforms.
Ela teve que bloquear a comunicação de um contato abusivo em todas as plataformas.