This is the 2568th most frequent Portuguese word.
falam
"Falam" means "they speak" or "they talk" in Portuguese.
Here, 'falam' indicates the action of conversing, directed towards 'vocês', using it to ask about interaction frequency.
Vocês falam com ele frequentemente?
Do you talk to him frequently?
The verb 'falam' is used here to indicate the action of speaking by a plural subject 'eles'.
Eles falam português fluentemente.
They speak Portuguese fluently.
The verb 'falam' signifies the activity of discussing a topic, performed by the plural subject 'as pessoas'.