This is the 2703rd most frequent Portuguese word.
privada
Toilet.
Here, 'privada' is used to refer to a toilet, specifically the fixture used for sanitary purposes.
Eu vou usar a privada do banheiro.
I am going to use the toilet in the bathroom.
In this context, 'privada' is an adjective meaning 'private,' describing the exclusivity of the party.
O evento foi uma festa privada, só para convidados.
The event was a private party, only for guests.
Here, 'privada' again functions as an adjective, indicating that the area is not public but is owned by a private entity.