circuit in WordNet English dictionary

1. movement once around a course
   "he drove an extra lap just for insurance"
   lap  circle  circuit 
   
2. a journey or route all the way around a particular place or area
   "they took an extended tour of Europe"; "we took a quick circuit of the park"; "a ten-day coach circuit of the island"
   tour  circuit 
   
3. an electrical device that provides a path for electrical current to flow
   circuit  electrical circuit  electric circuit 
   
4. a racetrack for automobile races
   racing circuit  circuit 
   
5. (law) a judicial division of a state or the United States (so-called because originally judges traveled and held court in different locations); one of the twelve groups of states in the United States that is covered by a particular circuit court of appeals
   circuit 
   
6. an established itinerary of venues or events that a particular group of people travel to
   "she's a familiar name on the club circuit"; "on the lecture circuit"; "the judge makes a circuit of the courts in his district"; "the international tennis circuit"
   circuit 
   
7. the boundary line encompassing an area or object
   "he had walked the full circumference of his land"; "a danger to all races over the whole circumference of the globe"
   circumference  circuit 
   

1. make a circuit
   "They were circuiting about the state"
   circuit