closed-circuit television: meaning, definition, pronunciation and examples
B2Formal, Technical, Journalistic
Quick answer
What does “closed-circuit television” mean?
A television system in which signals are transmitted via cables or wireless links to a limited set of connected monitors, typically for surveillance or internal broadcasting.
Audio
Pronunciation
Definition
Meaning and Definition
A television system in which signals are transmitted via cables or wireless links to a limited set of connected monitors, typically for surveillance or internal broadcasting.
The technology, equipment, or practice of using video cameras to transmit signals to specific monitors for security, monitoring, or private broadcasting purposes. Often used as a synonym for video surveillance systems.
Dialectal Variation
British vs American Usage
Differences
The term and abbreviation 'CCTV' are equally common in both varieties. The full form 'closed-circuit television' is slightly more formal in both.
Connotations
In both varieties, it strongly connotes surveillance, security, and monitoring, sometimes with negative implications of privacy invasion.
Frequency
The abbreviation 'CCTV' is more frequent in everyday speech and news reports in both the UK and US. The UK has a notably higher density of public CCTV cameras, making the term very common in media discourse.
Grammar
How to Use “closed-circuit television” in a Sentence
The [LOCATION] has CCTV.CCTV showed [EVENT].[AUTHORITY] installed CCTV to [PURPOSE].The [EVIDENCE] was captured on CCTV.Vocabulary
Collocations
Examples
Examples of “closed-circuit television” in a Sentence
verb
British English
- The council is planning to CCTV the entire town centre.
- The premises have been fully CCTV'd for years.
American English
- The store owner decided to CCTV the parking lot.
- The building has been CCTV'd as a security requirement.
adjective
British English
- The CCTV footage was crucial to the investigation.
- They reviewed the CCTV recordings.
American English
- The police examined the CCTV tape.
- CCTV technology has advanced rapidly.
Usage
Meaning in Context
Business
Discussed in security contracts, risk assessment reports, and premises management.
Academic
Used in criminology, sociology, and urban studies papers discussing surveillance and privacy.
Everyday
Used when discussing security measures, crime reports, or privacy concerns.
Technical
Specifications for camera types, recording systems, network topologies, and data storage in security engineering.
Vocabulary
Synonyms of “closed-circuit television”
Strong
Neutral
Weak
Vocabulary
Antonyms of “closed-circuit television”
Watch out
Common Mistakes When Using “closed-circuit television”
- Using 'CCTV' as a countable noun for a single camera (e.g., 'There is a CCTV on the wall' – better: 'There is a CCTV camera'). Confusing it with broadcast or streaming television.
FAQ
Frequently Asked Questions
It is usually treated as an uncountable noun referring to the system or technology (e.g., 'CCTV is widespread'). When referring to individual units, use 'CCTV camera' or 'CCTV system'.
CCTV is a dedicated, usually local network for surveillance. A webcam is typically a single camera connected to a computer for personal use, often streaming over the internet.
Yes, informally, especially in UK English (e.g., 'to CCTV an area'), meaning to install or cover with CCTV cameras. It is less common in formal writing.
No. 'Closed-circuit' refers to the private transmission path (circuit), not the visibility of the cameras. The cameras can be either overt or covert.
A television system in which signals are transmitted via cables or wireless links to a limited set of connected monitors, typically for surveillance or internal broadcasting.
Closed-circuit television is usually formal, technical, journalistic in register.
Closed-circuit television: in British English it is pronounced /ˌkləʊzd ˌsɜː.kɪt ˈtel.ɪ.vɪʒ.ən/, and in American English it is pronounced /ˌkloʊzd ˌsɝː.kɪt ˈtel.ə.vɪʒ.ən/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “caught on CCTV”
- “Big Brother is watching (conceptual, related)”
Learning
Memory Aids
Mnemonic
Think of a circuit that is CLOSED (not open to the public), sending television signals only to specific screens.
Conceptual Metaphor
SURVEILLANCE IS A WATCHFUL EYE; PRIVACY IS A CLOSED SPACE (invaded).
Practice
Quiz
What is the primary purpose of a closed-circuit television system?