IPA: /ˈɒkjʊpaɪə/
KK: /ˈɑkjəˌpaɪər/
A person or group that occupies a space or property, often referring to someone living in a place without legal ownership.
The occupier of the building was asked to leave by the authorities.
Occupier → It is formed from "occupare" (meaning to seize or take up) and "-er" (meaning a person who). The word "occupier" refers to a person who takes up or holds a space or position.
Think of someone who 'takes up' a space ('occupare') — that's why an occupier is a person who holds or uses a place.