IPA: /ˌpriːˈɒk.jə.pən.si/
KK: /priˈɑk.jə.pən.si/
The act of taking possession of a place or being busy with something before others do.
Her preoccupancy with work made it hard for her to relax during the weekend.
Preoccupancy → It is formed from "pre-" (meaning before) and "occupancy" (from Latin "occupare", meaning to seize or take possession of). The word refers to the state of being occupied or taken possession of before a certain time or event.
Think of being 'occupied' ('occupancy') 'before' ('pre-') something happens — that's what preoccupancy means.