When an addict relapses, it means that they have returned to using drugs or alcohol after a period of sobriety. Relapse is a common occurrence in addiction recovery, and it is not a sign of failure. However, it is important for the person to seek help and support as soon as possible to prevent further harm and get back on track towards recovery. It is also important to identify and address any triggers or underlying issues that may have contributed to the relapse, in order to prevent future occurrences.