circuit
noun
1.
an electrical device that provides a path for electrical current to flow
2.
3.
an established itinerary of venues or events that a particular group of people travel to
Derived from:
circuit 4.
the boundary line encompassing an area or object
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
6.
a racetrack for automobile races
7.
movement once around a course