The term 'CARRIER RIDER' can be broken down into two words, 'CARRIER' and 'RIDER'. CARRIER is a job title that refers to someone who transports goods or people from one place to another. A RIDER is someone who rides on a horse, bicycle, or other vehicle. Together, the term 'CARRIER RIDER' refers to someone who transports goods or people on a horse, bicycle, or other vehicle. This job requires physical strength and endurance, as well as knowledge of the area in which they are travelling.