sentry duty

• Tarefa ou obrigação de ficar de guarda como sentinela, geralmente em contexto militar ou de segurança, para vigiar perigos ou intrusões não autorizadas.

The task or responsibility of standing guard as a sentry, typically in a military or security context, to watch for danger or unauthorized entry.

1. Guard dutyB2formal

   The task or responsibility of standing watch as a sentry to protect a place or person.

   Serviço de sentinela

   • The soldier was assigned sentry duty at the main gate.
   • He performed sentry duty throughout the cold night.
   • Sentry duty requires constant alertness and discipline.