circuit

A connected path through which electricity can flow, usually to make a device work.

• The battery powers the circuit.
• Opening the switch breaks the circuit.
• The device contains several small electrical circuits.

Similar words: electrical circuit

Common phrases: electric circuit, circuit board, complete a circuit, break the circuit

A route around a place that brings you back to where you started, or one journey along it.

• We ran one circuit of the park.
• The racing circuit has several sharp bends.
• She completed three circuits before stopping to rest.

How to use it: a circuit of something (We walked a circuit of the lake.)

Similar words: loop, lap, round

Common phrases: complete a circuit, race circuit, circuit of something