1. a person who rides on horseback to deliver mail or messages, especially in a relay system along a fixed route
Usage: archaic; historical

Examples

• The postrider galloped through the countryside, carrying urgent dispatches to the next station.
• In the 18th century, postriders were essential for maintaining communication between distant towns.
• The postrider changed horses at each post house to ensure swift delivery of the mail.
• Letters entrusted to a postrider could take weeks to reach their destination.
• The postrider's route was well-established, with rest stops and fresh mounts available along the way.