to announce an imperial arrival and clear the streets for the emperor's carriage to pass

(literary) to follow and escort the emperor while traveling or on an excursion

(literary) to clear the way for an emperor's carriage by cleaning the road and making common people move aside

(literary) a herald or guard who clears the road for the emperor to pass and stops pedestrians

to clear the emperor's route of traffic and people in preparation for his passage

(literary) of an emperor or monarch while traveling, to stop over or stay temporarily at a location en route