Definition of "Circuit" :

noun: movement once around a course

noun: a journey or route all the way around a particular place or area

"We took a quick circuit of the park."

noun: an electrical device that provides a path for electrical current to flow

noun: a racetrack for automobile races

noun: (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

noun: the boundary line encompassing an area or object

noun: an established itinerary of venues or events that a particular group of people travel to

"She's a familiar name on the club circuit."

verb: make a circuit

"They were circuiting about the state."