pre·oc·cu·py 
/ˌpri:ˈɑ:kjəˌpaɪ/ verb
pre·oc·cu·pies; pre·oc·cu·pied; pre·oc·cu·py·ing /ˌpri:ˈɑ:kjəˌpaɪ/ verb [+ obj] : to be thought about or worried about by (someone) very often or constantly
▪ The question of life after death has preoccupied many philosophers. ▪ Her family problems continue to preoccupy her. [=she continues to spend a lot of time thinking/worrying about her family problems]
▪ The question of life after death has preoccupied many philosophers. ▪ Her family problems continue to preoccupy her. [=she continues to spend a lot of time thinking/worrying about her family problems]
