A satrap was a governor in the ancient Persian Empire, responsible for overseeing a specific region or province. The term comes from the Old Persian word "khshathrapavan," meaning "protector of the province." Satraps were appointed by the king and had significant authority, including collecting taxes, maintaining order, and managing local affairs. Satraps played a crucial role in the administration of the vast Persian Empire, which included various cultures and languages. They were often supported by a council and military forces to help maintain control. The system of satrapies allowed the Persian Empire to efficiently govern its territories, contributing to its stability and longevity.