This is the 668th most frequent Spanish word.
privada
"Privada" means "private" or "exclusive" in English.
Here, 'privada' functions as an adjective describing the noun 'escuela', meaning that the school is not public, but privately funded or owned.
Mi hermana trabaja en una escuela privada.
My sister works at a private school.
The word 'privada' describes the noun 'propiedad', meaning that the property is owned by an individual or entity and is not public or shared.
Acabo de adquirir una propiedad privada en las afueras.
I just acquired a private property on the outskirts.
In this sentence, 'privada' in its masculine form 'privado' is used as an adjective describing the noun 'pasillo', indicating that the hallway is not for general use or access.