An inmate is a person who lives in an institution, especially someone confined to a prison or jail while serving a sentence for breaking the law. When someone is convicted of a crime, a judge might sentence them to become an inmate at a state prison or county jail.

While inmate can technically refer to anyone living in an institution (like a hospital or boarding school), it's most commonly used for people in prisons. Prison inmates live under strict rules and supervision. They wear uniforms, follow schedules, and have limited freedom while serving their sentences.

You might read in a news article that “the county jail houses 200 inmates” or that “an inmate was released after serving five years.” The term is neutral and factual: it describes someone's current legal status, not who they are as a person. Many former inmates successfully rebuild their lives after serving their sentences, finding work, reconnecting with family, and contributing to their communities.