This is the 17848th most frequent Russian word.
усилили
"Усилили" means "strengthened" or "reinforced" in English.
In this sentence, 'усилили' is used to describe an action of increasing or enhancing measures or efforts in the context of security.
Они усилили меры безопасности в аэропорту.
They strengthened the security measures at the airport.
Here, 'усилили' refers to boosting the signal intensity to improve its effectiveness.
Мы усилили сигнал антенны для лучшего приема.
We strengthened the antenna signal for better reception.
In this use, 'усилили' conveys the action of making something stronger or more durable, specifically the structural integrity of the building.