When it comes to relationships, there are several different ways to describe living together. Some synonyms for cohabits include residing, sharing a home, bunking, occupying the same space, living in close quarters, and dwelling. Other words that can be used to describe cohabiting couples include roommates, partners, housemates, companions, and significant others. Cohabitation is becoming increasingly common these days. This means that finding the right words to describe it is becoming more and more important. Regardless of the word you choose to use, living together can be an exciting and rewarding experience for those who choose to take the leap.