1. Third person singular preterite of 'silenciar' - to make silent, to silence, to quiet
He silenced the crowd with a gesture.
Ele silenciou a multidão com um gesto.
2. To suppress or mute sound, speech, or noise
She silenced her phone before the meeting.
Ela silenciou seu telefone antes da reunião.
3. To suppress or inhibit expression, opinion, or criticism
The government silenced the opposition.
O governo silenciou a oposição.