IPA: //koʊˈhæbɪtənt//
KK: /koʊˈhæbɪtənt/
A person who lives together with someone else in a romantic or domestic relationship without being married.
They have been cohabitants for several years and are very happy together.
Cohabitant → It is formed from "co-" (meaning together) and "habitare" (meaning to dwell or live). The word describes a person who lives together with another, typically in a domestic setting.
Think of people 'living together' — 'co-' means together, and 'habitare' means to dwell.