Open English Wordnet
Verbs
(v)preoccupyengage or engross the interest or attention of beforehand or occupy urgently or obsessively“His work preoccupies him”,
“The matter preoccupies her completely — she cannot think of anything else” (v)preoccupyoccupy or take possession of beforehand or before another or appropriate for use in advance“the army preoccupied the hills”