This is the 560th most frequent Portuguese word.
sala
Room.
In this sentence, 'sala' is used to refer to a living room in a house.
Eu estou na sala assistindo televisão.
I am in the living room watching television.
Here, 'sala' is used as part of the term 'sala de aula', which means 'classroom', a room used for teaching purposes.
A sala de aula está muito silenciosa hoje.
The classroom is very quiet today.
In this context, 'sala' is used generically to mean any room in which an event or activity is planned.