circuit
B2Formal/Technical/General
Definition
Meaning
A roughly circular path or route that starts and ends at the same place.
A complete, closed path through which an electric current can flow; a system of electronic components connected to form such a path; a series of events, performances, or locations visited in a regular sequence; a designated area for administrative or judicial purposes.
Linguistics
Semantic Notes
Primarily a noun. The verb form ('to circuit') exists but is less common and means 'to go around' or 'to make a circuit of'. Often used metaphorically for routes, journeys, or systems.
Dialectal Variation
British vs American Usage
Differences
In British English, 'circuit' is often used for the track in motor racing (e.g., Silverstone Circuit). In American legal context, 'circuit court' is standard; in the UK, 'circuit judge' is common.
Connotations
Neutral in both varieties. In sports/entertainment contexts ('lecture circuit', 'tennis circuit'), usage is identical.
Frequency
Equally frequent in both varieties, with slight skew towards technical usage in AmE (electronics) and institutional usage in BrE (legal/judicial).
Vocabulary
Collocations
Grammar
Valency Patterns
[V] a circuit (of something)[ADJ] circuit[N] circuitVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “come full circuit”
- “short-circuit (a process)”
- “on the lecture/supper club circuit”
Usage
Context Usage
Business
Refers to a regular route for sales representatives or a series of meetings.
Academic
Used in physics/electronics for electrical circuits and in law for judicial circuits.
Everyday
Commonly refers to a exercise routine at a gym (circuit training) or a driving route.
Technical
Central in electrical engineering (printed circuit board, integrated circuit).
Examples
By Part of Speech
verb
British English
- The Queen's procession will circuit the monument before the ceremony.
- The rally cars will circuit the track three times.
American English
- The delivery trucks circuit the northern suburbs every Tuesday.
- The judge had to circuit several counties in one week.
adverb
British English
- The signal travels circuitously through the network.
American English
- The road runs circuitously around the hill.
adjective
British English
- He is a circuit judge presiding over Midlands cases.
- We watched the circuit racing highlights.
American English
- She serves on the circuit court of appeals.
- Circuit training is offered at the gym every evening.
Examples
By CEFR Level
- The light will not work if the circuit is broken.
- We drove around the entire circuit of the park.
- A short circuit caused the power outage in the building.
- He competes on the professional tennis circuit.
- The integrated circuit is a fundamental component of modern computers.
- After years abroad, she returned to the London literary circuit.
- The federal judge rides the circuit, hearing cases in multiple districts.
- Innovations in printed circuit board design have miniaturised devices dramatically.
Learning
Memory Aids
Mnemonic
Imagine a CIRCLE you ITCH to complete – that's a CIRCUIT. Both start and end at the same spot.
Conceptual Metaphor
LIFE IS A CIRCUIT (cyclical journeys, routines). COMMUNICATION IS A CIRCUIT (completing a connection).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'схема' (scheme/blueprint). 'Circuit' is 'цепь' or 'контур'. 'Circuit board' is 'печатная плата', not 'доска'.
- In sports, 'circuit' is often 'трасса' or 'круг', not 'цирк' (that's 'circus').
Common Mistakes
- Misspelling as 'circiut' or 'circut'.
- Using 'circle' interchangeably in technical contexts (a circle is a shape, a circuit is a path/system).
- Pronouncing the 'c' as /k/ in 'circuit breaker' (it's /s/).
Practice
Quiz
In which context does 'circuit' NOT typically imply a return to the starting point?
FAQ
Frequently Asked Questions
Yes, but it's less common. It means 'to go around' or 'to make a circuit of' (e.g., 'The tour will circuit the country').
A 'circle' is primarily a round shape. A 'circuit' is a path, route, or system that forms a closed loop, often with a functional purpose (electrical, judicial, sporting).
Literally, it's an electrical fault where current takes a shortcut, causing failure. Metaphorically, it means to bypass normal procedures or to cause something to stop prematurely.
Both are used. 'Racing circuit' (or just 'circuit') is more formal and British. 'Race track' is common in American English and for non-permanent tracks.