ex

Most often, "ex" means a person you used to be in a romantic relationship with, such as a former boyfriend, girlfriend, husband, or wife. You might bump into your ex at a cafe and feel a little awkward. It can also appear as the prefix "ex-" before a job or role, where it means "former" or "no longer." An ex-president once held that office, and an ex-employee used to work at a company. In both cases, the idea is the same: the connection belonged to the past, not the present.

The word "ex" is most commonly used as a noun meaning a former romantic partner or former spouse. It refers to someone you were once close to in a relationship, but are no longer with. You might hear phrases like "my ex-boyfriend," "my ex-wife," or simply "my ex." The word often appears in stories about breakups, memories, or unexpected meetings, but by itself it does not always sound negative. It mainly points to a relationship that is over.

The related prefix "ex-" has a broader use. When placed before a noun, it means "former" or "no longer in that position or state." For example, an "ex-president" is a person who used to be president, an "ex-employee" used to work for a company, and an "ex-smoker" used to smoke but has stopped. In this pattern, the idea is not about romance at all. It simply marks a past status.

Because of that, the noun and the prefix are connected by the same basic idea: something that was true before but is not true now. Still, in everyday conversation, if someone says "my ex" or "I saw my ex," people will usually think of a former boyfriend, girlfriend, husband, or wife first.

So the word can point either to a past relationship or, in the form "ex-," to a person or thing that used to have a certain role. In both uses, it carries the same sense of "former" and places the connection clearly in the past.