1.  circuit(n = noun.artifact) electric circuit, electrical circuit - an electrical device that provides a path for electrical current to flow;

2.  circuit(n = noun.act) tour - a journey or route all the way around a particular place or area; "a ten-day coach circuit of the island"; "they took an extended tour of Europe"; "we took a quick circuit of the park"
Derived form verb circuit₁

3.  circuit(n = noun.location) - an established itinerary of venues or events that a particular group of people travel to; "on the lecture circuit"; "she's a familiar name on the club circuit"; "the international tennis circuit"; "the judge makes a circuit of the courts in his district"
Derived form verb circuit₁

4.  circuit(n = noun.location) circumference - the boundary line encompassing an area or object; "a danger to all races over the whole circumference of the globe"; "he had walked the full circumference of his land"

5.  circuit(n = noun.group) - (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.  circuit(n = noun.artifact) racing circuit - a racetrack for automobile races;

7.  circuit(n = noun.act) circle, lap - movement once around a course; "he drove an extra lap just for insurance"

   circuit(v = verb.motion) - make a circuit; "They were circuiting about the state"
Derived form noun circuit₂, noun circuit₃
Sample sentences: Somebody ----s; Somebody ----s PP

1.  The act of moving or revolving around, or as in a circle or orbit; a revolution; as, the periodical circuit of the earth round the sun. Watts. [1913 Webster]

2.  The circumference of, or distance round, any space; the measure of a line round an area. [1913 Webster]

3.  That which encircles anything, as a ring or crown. [1913 Webster]

4.  The space inclosed within a circle, or within limits. [1913 Webster]

5.  A regular or appointed journeying from place to place in the exercise of one's calling, as of a judge, or a preacher. [1913 Webster]

6.  A certain division of a state or country, established by law for a judge or judges to visit, for the administration of justice. [1913 Webster]

7.  Circumlocution. Huloet. [1913 Webster]

   To move in a circle; to go round; to circulate. J. Philips. [1913 Webster]

   To travel around. T. Warton. [1913 Webster]

circuit, n.
1 a a line or course enclosing an area; the distance round. b the area enclosed.
2 Electr. a the path of a current. b the apparatus through which a current passes.
3 a the journey of a judge in a particular district to hold courts. b this district. c the lawyers following a circuit.
4 a chain of theatres or cinemas etc. under a single management.
5 Brit. a motor-racing track.
6 a a sequence of sporting events (the US tennis circuit). b a sequence of athletic exercises.
7 a roundabout journey.
8 a a group of local Methodist churches forming a minor administrative unit. b the journey of an itinerant minister within this.

Idiom:
circuit-breaker an automatic device for stopping the flow of current in an electrical circuit.

Etymology:
ME f. OF, f. L circuitus f. CIRCUM- + ire it- go

N  circuit, roundabout way, digression, detour, circumbendibus, ambages, loop, winding, zigzag, circuitous, indirect, roundabout, zigzag, backhanded, by a side wind, by an indirect course, in a roundabout way, from pillar to post.

N  region, sphere, ground, soil, area, field, realm, hemisphere, quarter, district, beat, orb, circuit, circle, reservation, pale, compartment, department, clearing, (property) &c 780 (Government), 1 arena, precincts, enceinte, walk, march, patch, plot, parcel, inclosure, close, field, court, enclave, reserve, preserve, street, clime, climate, zone, meridian, latitude, biosphere, lithosphere, territorial, local, parochial, provincial, regional.

N  outline, circumference, perimeter, periphery, ambit, circuit, lines tournure, contour, profile, silhouette, bounds, coast line, zone, belt, girth, band, baldric, zodiac, girdle, tyre, cingle, clasp, girt, cordon, circlet.

N  convolution, winding, convolution, involution, circumvolution, wave, undulation, tortuosity, anfractuosity, sinuosity, sinuation, meandering, circuit, circumbendibus, twist, twirl, windings and turnings, ambages, torsion, inosculation, reticulation, rivulation, roughness, coil, roll, curl, buckle, spiral, helix, corkscrew, worm, volute, rundle, tendril, scollop, scallop, escalop, kink, ammonite, snakestone, serpent, eel, maze, labyrinth, knot, convoluted, winding, twisted, tortile, tortive, wavy, undated, undulatory, circling, snaky, snake-like, serpentine, serpent, anguill, vermiform, vermicular, mazy, tortuous, sinuous, flexuous, anfractuous, reclivate, rivulose, scolecoid, sigmoid, sigmoidal, spiriferous, spiroid, involved, intricate, complicated, perplexed, labyrinth, labyrinthic, labyrinthian, labyrinthine, peristaltic, daedalian, kinky, knotted, wreathy, frizzly, crepe, buckled, raveled, spiral, coiled, helical, cochleate, cochleous, screw-shaped, turbinated, turbiniform, in and out, round and round, a can of worms, Gordian knot.

N  journey, travel, traveling, wayfaring, campaigning, journey, excursion, expedition, tour, trip, grand tour, circuit, peregrination, discursion, ramble, pilgrimage, hajj, trek, course, ambulation, march, walk, promenade, constitutional, stroll, saunter, tramp, jog trot, turn, stalk, perambulation, noctambulation, noctambulism, somnambulism, outing, ride, drive, airing, jaunt, equitation, horsemanship, riding, manege, ride and tie, basophobia, roving, vagrancy, pererration, marching and countermarching, nomadism, vagabondism, vagabondage, hoboism, gadding, flit, flitting, migration, emigration, immigration, demigration, intermigration, wanderlust, plan, itinerary, guide, handbook, guidebook, road book, Baedeker, Bradshaw, Murray, map, road map, transportation guide, subway map, procession, cavalcade, caravan, file, cortege, column, vehicle, automobile, train, bus, airplane, plane, autobus, omnibus, subway, motorbike, dirt bike, off-road vehicle, van, minivan, motor scooter, trolley, locomotive, legs, feet, pegs, pins, trotters, traveler, depot, railway station, station, traveling, ambulatory, itinerant, peripatetic, roving, rambling, gadding, discursive, vagrant, migratory, monadic, circumforanean, circumforaneous, noctivagrant, mundivagrant, locomotive, wayfaring, wayworn, travel-stained, on foot, on horseback, on Shanks's mare, by the Marrowbone stage: in transitu, en route, Int, come along!.

N  circuition, circulation, turn, curvet, excursion, circumvention, circumnavigation, circumambulation, northwest passage, circuit, turning, wrench, evolution, coil, corkscrew, turning, circuitous, circumforaneous, circumfluent, round about.