IPA: //ˈzuːˌkiːpər//
KK: /ˈzuːˌkiːpər/
A person who is responsible for the care and management of animals in a zoo.
The zookeeper fed the lions and checked on the health of the other animals.
Zookeeper → It is formed from "zoo" (from Greek "zoion", meaning animal) and "keeper" (from Old English "cepan", meaning to guard or take care of). A zookeeper is someone who takes care of animals in a zoo.
Think of a person who 'guards' or 'takes care of' ('keeper') 'animals' ('zoo') — that's what a zookeeper does.