IPA: /ˈlændˌoʊnər/
KK: /ˈlændˌoʊnər/
A person who owns a piece of land or property.
The landowner decided to sell part of his estate to a developer.
Landowner → It is formed from "land" (from Old English *land*, meaning ground or territory) and "owner" (from Old English *agan*, meaning to possess). The word "landowner" refers to a person who possesses or owns land.
Think of someone who 'possesses' ('owner') a specific 'territory' ('land') — that's what a landowner is.