IPA: /ˈkɒl.ə.naɪ.zər/
KK: /ˈkɒlənʌɪzə/
A person or group that establishes control over a new area or country, often settling there and exploiting its resources.
The coloniser imposed their culture and language on the indigenous people.
Coloniser → It is formed from "colonus" (from Latin, meaning farmer or settler) and "-iser" (a suffix used to form verbs indicating to make or to cause). The word "coloniser" refers to someone who makes a settlement or establishes a colony in a new territory.
Think of a 'farmer' or 'settler' ('colonus') who 'makes' a new place their home ('-iser'). This helps you remember that a coloniser is someone who establishes a new settlement.