WordNet sense 1 (be on the mind of):

concern, interest, worry

WordNet sense 2 (be present in; be inside of):

inhabit

WordNet sense 3 (keep busy with):

busy

WordNet sense 4 (occupy the whole of):

fill

WordNet sense 5 (live (in a certain place)):

reside, reside, lodge in

WordNet sense 6 (require (time or space)):

take, use up

WordNet sense 7 (march aggressively into another's territory by military force for the purposes of conquest and occupation):

invade

WordNet sense 8 (engage or engross wholly):

absorb, engage, engross