<p><strong>Noun:</strong></p><ul><li>an act or instance of going or moving around.</li><li>a circular journey or one beginning and ending at the same place; a round.</li><li>Synonyms: orbit, revolution, tour.</li><li>a roundabout journey or course.</li><li>a periodical journey from place to place, to perform certain duties, as by judges to hold court, ministers to preach, or salespeople covering a route.</li><li>the persons making such a journey.</li><li>the route followed, places visited, or district covered by such a journey.</li><li>the line going around or bounding any area or object; the distance about an area or object.</li><li>Synonyms: compass, boundary, periphery, perimeter, circumference.</li><li>the space within a bounding line; district: the circuit of the valley.</li><li>Synonyms: field, range, area, compass, region.</li><li>Electricity. Also called electric circuit: the complete path of an electric current, including the generating apparatus, intervening resistors, or capacitors.</li><li>any well-defined segment of a complete circuit.</li><li>Telecommunications: a means of transmitting communication signals or messages, usually comprising two channels for interactive communication.</li><li>a number of theaters, nightclubs, etc., controlled by the same owner or manager or visited in turn by the same entertainers or acting companies.</li><li>Synonyms: chain.</li><li>a league or association: He used to play baseball for the Texas circuit.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to go or move around; make the circuit of.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to go or move in a circuit.</li></ul>