Cohabiting is a term used to refer to individuals living together in a romantic relationship without being married. There are several synonyms for cohabiting, including cohabitation, shacking up, living together, common-law marriage, domestic partnership, and civil union. Cohabitation has become increasingly popular in modern society, with many couples opting to live together before tying the knot or choosing not to marry at all. While cohabiting often carries a negative connotation outside of legal marriage, it can provide couples with a meaningful and committed relationship without the legalities and societal expectations of marriage. Whatever term is used, the important thing is that it reflects the understanding and commitment of the couple involved.