possession

Power or control over something, as distinct from lawful ownership; holding or occupancy.

Ownership of something.

Example: I have possession of some valuable antiques.

Something that is owned.

Example: These are my possessions.

A territory that is under the rule of another country.

Example: Puerto Rico is a possession of the United States.

Possession is when a person's body is controlled by a demon or other supernatural being.

Example: Exorcism is a movie about possession.