radar gun
MediumNeutral to formal
Definition
Meaning
A hand-held electronic device used by police or sports officials to measure the speed of a moving object, typically a vehicle or ball.
More broadly, any device that uses radar technology to detect and display the speed of a moving object. It can also refer metaphorically to any intense scrutiny or measurement of performance.
Linguistics
Semantic Notes
A compound noun where 'radar' specifies the technology and 'gun' describes the hand-held, pointed shape. It is not a firearm.
Dialectal Variation
British vs American Usage
Differences
The term is identical. British English may use the related term 'speed gun' more interchangeably.
Connotations
Strongly associated with law enforcement and speed limits in both cultures.
Frequency
Equally common in both variants due to the global nature of the technology.
Vocabulary
Collocations
Grammar
Valency Patterns
The officer used a radar gun on the motorist.The radar gun clocked the car at 120 mph.He was caught by a radar gun.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “caught by the gun”
- “in the crosshairs of the radar gun”
Usage
Context Usage
Business
Rare, except in manufacturing or law enforcement equipment sales.
Academic
Used in physics, engineering, or sports science contexts discussing measurement technology.
Everyday
Common in discussions about traffic tickets, sports, or local news.
Technical
Precise term in law enforcement and sports officiating.
Examples
By Part of Speech
verb
British English
- The constable was radar-gunning vehicles on the A1.
American English
- The trooper radar-gunned me just outside of town.
adjective
British English
- The radar-gun reading was incontrovertible evidence.
American English
- He faced a radar-gun violation.
Examples
By CEFR Level
- The police have a radar gun.
- The radar gun shows the car speed.
- The officer pointed the radar gun at my car and recorded my speed.
- In baseball, they use a radar gun to see how fast the pitcher throws.
- Despite the clearly posted limit, he was clocked at 90 mph by a radar gun hidden in an unmarked van.
- The new radar guns are more accurate and harder for detectors to pick up.
- The defence attorney questioned the calibration records of the radar gun to challenge the speeding charge.
- Advancements in lidar technology are beginning to supplant traditional radar guns in traffic enforcement.
Learning
Memory Aids
Mnemonic
Think of a police officer RADAR-ing a car like a detective, holding a GUN-shaped device.
Conceptual Metaphor
SPEED IS A TARGET (to be measured/caught); LAW IS A HUNTER.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'gun' literally as 'пистолет' or 'ружьё'—it's not a weapon. The concept is 'радар для измерения скорости'.
Common Mistakes
- Using 'radar' alone to mean the hand-held device (a 'radar gun' is specific).
- Confusing it with a camera or a 'speed camera'.
Practice
Quiz
What is the primary function of a radar gun?
FAQ
Frequently Asked Questions
No, it is not a firearm. The term 'gun' refers only to its hand-held, pointed shape and the action of 'pointing' it at a target.
Yes, modern radar guns are generally effective in various weather conditions, though heavy rain can sometimes slightly affect accuracy.
A radar gun is typically hand-held and operated by an officer, providing an instant readout. A speed camera is usually stationary, automatic, and takes a photograph as evidence.
They are considered reliable evidence, but their accuracy can be challenged based on factors like improper calibration, operator error, or interference.