To possess something is to have or own it. You can possess a physical object, you can possess a particular quality or skill, or you can possess control or influence over someone.

What does it mean to have something in your possession?

Definition of have in one's possession

formal. : to have or to own I have in my possession silverware that has been passed down in my family for generations.

What does it mean to possess someone?

Possession has been defined by people as owning and controlling someone or something. The dictionary defines it as the state of having, owning, or controlling something.