preoccupy

英[priː'ɒkjʊpaɪ] 美[pri'ɑkjə'pai]

1. engage or engross the interest or attention of beforehand or occupy urgently or obsessively;

"His work preoccupies him"

"The matter preoccupies her completley--she cannot think of anything else"

2. occupy or take possession of beforehand or before another or appropriate for use in advance;

"the army preoccupied the hills"