Meaning of CIRCUIT in English

cir ‧ cuit W3 /ˈsɜːkət, ˈsɜːkɪt $ ˈsɜːr-/ BrE AmE noun [countable]

[ Date: 1300-1400 ; Language: Old French ; Origin: circuite , from Latin circuitus , past participle of circumire , circuire 'to go around' , from circum ( CIRCUM- ) + ire 'to go' ]

1 . a path that forms a circle around an area, or a journey along this path:

We did a circuit of the old city.

2 . British English a track that cars, ↑ motorbike s etc race around

3 . the tennis/lecture/cabaret etc circuit all the places that are usually visited by someone who plays tennis etc:

a well-known entertainer on the club circuit

4 . the complete circle that an electric current travels:

an electrical circuit

5 . a regular trip around an area made by a judge or a religious leader, so that a court of law or church can meet in several different places:

a circuit judge

a circuit preacher

6 . do circuits British English informal to do ↑ circuit training

⇨ ↑ closed circuit television , ↑ printed circuit , ↑ short circuit

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.