occupied >> ˈɒkjʊpʌɪd
Definition: [adjective] (of a building, seat, etc.) being used by someone.
Example: only the ground floor is fully occupied
Definition: [adjective] busy and active.
Example: tasks which kept her occupied for the day
Definition: [adjective] (of a place, especially a country) taken control of by military conquest or settlement.
Example: the occupied territories