occupied in WordNet English dictionary

1. having ones attention or mind or energy engaged
   "she keeps herself fully occupied with volunteer activities"; "deeply engaged in conversation"
   engaged  occupied 
   
2. held or filled or in use
   "she keeps her time well occupied"; "the wc is occupied"
   occupied 
   
3. seized and controlled as by military invasion
   "the occupied countries of Europe"
   occupied 
   
4. resided in; having tenants
   "not all the occupied (or tenanted) apartments were well kept up"
   occupied  tenanted