ˈsɜɹkəl sɜːˈkʌm.fɹəns sɝːˈkʌm.fɹəns movement once around a course he drove an extra lap just for insurance 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 make a circuit They were circuiting about the state an electrical device that provides a path for electrical current to flow a racetrack for automobile races (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 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 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