Adjective : He spent only his own money. ,He insists on being his own doctor.    From Dictionary.com. 

Verb (used with object) : They own several homes. ,to own a fault. ,He owned his child before the entire assembly. They owned the king as their lord.    From Dictionary.com. 

Verb (used without object) : The one who did it had better own up. I own to being uncertain about that.    From Dictionary.com.