This is the 1158th most frequent Portuguese word.
acionada
"Acionada" means "activated" or "triggered" in English.
In this context, 'acionada' is used to describe the act of initiating or setting something (the lever) into motion to start a machine.
A alavanca foi acionada para iniciar a máquina.
The lever was activated to start the machine.
Here, 'acionada' refers to the act of summoning or calling into action the rescue team.
A equipe de resgate foi acionada após o acidente.
The rescue team was called into action after the accident.
In this example, 'acionada' indicates that the siren was triggered or activated to emit its warning sound.