This is the 396th most frequent Russian word.
провели
"Провели" means "conducted," "spent," or "led," depending on context.
Here 'провели' is used to indicate spending time, particularly an evening, in a specific manner.
Мы провели вечер в уютной атмосфере.
We spent the evening in a cozy atmosphere.
Here, 'провели' is used in the sense of extending or installing something, in this case a cable.
Инженеры провели кабель через всю комнату.
The engineers laid the cable across the entire room.
In this sentence, 'провели' is used in the context of conducting or performing an action, such as an experiment.