cohabitate

To cohabitate means to live together in one home. It is often used for unmarried couples sharing a household, though roommates can also cohabitate. Think of two birds building a nest and living together there! Over time, the word became common as people increasingly lived together before or instead of marriage.

Once upon a time, "cohabitation" could be seen as scandalous and was often met with disapproval. Today, it's a familiar part of many lives. To cohabitate simply means to live together, not just share an address. It usually refers to two people living together in a romantic relationship without being married.

The roots of "cohabitate" come from Latin and mean "to live with." While roommates can technically cohabitate too, the word is most often used for couples. It's become common for couples to cohabitate as a way to test compatibility before marriage, or as an alternative to traditional marriage altogether.

You might hear it in legal contexts too—laws about property and inheritance can be different for cohabitating couples versus married ones. Sociologists study cohabitation trends to understand changing family structures. A news article might say: "Recent studies show a rise in young adults choosing to cohabitate before marriage." A character in a novel could also say, "They've been cohabitating for five years now, and they seem very happy."

So, while at its core it means sharing a home, "cohabitate" also reflects changing relationships, social norms, and the many ways people choose to build their lives together.