possession in WordNet English dictionary

1. a mania restricted to one thing or idea
   monomania  possession 
   
2. the act of having and controlling property
   possession  ownership 
   
3. anything owned or possessed
   possession 
   
4. (sport) the act of controlling the ball (or puck)
   "they took possession of the ball on their own goal line"
   possession 
   
5. the trait of resolutely controlling your own behavior
   self-control  self-possession  possession  willpower  will power  self-command  self-will 
   
6. a territory that is controlled by a ruling state
   possession 
   
7. being controlled by passion or the supernatural
   possession