A roughly circular line, route, or movement that starts and finishes at the same place. The runners completed the circuit around the park in record time.
A complete and closed path around which a circulating electric current can flow. The engineer designed a new circuit for the electronic device.
A series of performances, sports events, or other activities that are regularly held in different places. The comedian is well-known on the comedy club circuit.
A judicial division or district in which a judge regularly travels to hold court sessions. The judge is responsible for the northern circuit of the state.