1. adjective /ˈpɹaɪvət/
a) Belonging to, concerning, or accessible only to an individual person or a specific group.
Her address is private, you cant have it.
b) Not in governmental office or employment.
He quit public life, living quietly as a private citizen.
2. noun /ˈpɹaɪvət/
a) The lowest rank of the army.
b) A soldier of the rank of private.
Wikipedia foundation.