Demob, DISCHARGE, and separate are all terms used to describe the process of release from military service. Demob is a British term derived from the phrase 'demobilization, ' which is the process of releasing members of the armed forces from active duty. DISCHARGE is an American term that refers to the formal process of ending a person's military service. Separate is a general term that can be used to refer to the process of ending a person's military service in either the United States or the United Kingdom.