1》 a roughly circular line, route, or movement.
2》 Brit. a track used for motor racing, horse racing, or athletics.
3》 a system of electrical conductors and components forming a complete path around which an electric current can flow.
4》 an established series of sporting events or entertainments.
↘a series of athletic exercises performed in one training session.
↘a regular journey by a judge around a district to hear court cases.
5》 a group of Methodist Churches forming an administrative unit.
■ verb move all the way around.
ME: via OFr. from L. ~us , from circuire , var. of circumire 'go round'.