A "designated driver" refers to a person who abstains from consuming alcohol at a social outing, ensuring that they are responsible for safely driving themselves and others home. Synonyms for "designated driver" include "sober driver", "responsible driver", "designated sober driver", "designated driver service", and "safe driver". These terms are often used in the context of promoting responsible drinking habits, especially during events involving alcohol consumption such as parties, concerts, and sports events. Having a designated driver is an important aspect of responsible drinking, where individuals can have fun while also ensuring their own safety and the safety of others.