C1noun 3K

Radar

🇬🇧 UK /["/ˈreɪdɑː(r)/"]/ 🇺🇸 US /["/ˈreɪdɑːr/"]/

Meaning of Radar

a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they cannot be seen

In simple words: A system that uses waves to find objects and measure their distance.

Radar in a sentence

• They located the ship by radar.
• a radar screen
• The aircraft suddenly went off the radar.
• The submarine is impossible to detect on radar.
• navigation by radar
• Experts say a lot of corporate crime stays under the radar.
• The conflict has slipped below the radar of the media.
• The issue of terrorism is back on the radar screen.
• Since the scandal broke, all other issues seem to have **disappeared off the radar screen** as far as the media is concerned.

How to use Radar

Used in contexts related to navigation, weather, and security. Avoid in casual conversations unless discussing technology. Works in both spoken and written communication.

Grammar pattern

standalone noun

Memory hint

Think of 'radar' as 'RAdio Detection And Ranging'.

Related words

Collocations with Radar

• enemy
• police
• airborne
• be equipped with
• operator
• station
• system
• by radar
• on radar
• off the radar
• on the radar

Synonyms for Radar

• detector
• sonar
• locator

Opposites of Radar

• invisibility
• undetectability

Common mistakes with Radar

• Confused with 'racer' because of similar spelling.
• Incorrectly pronounced as 'ray-dar' instead of 'rad-ar'.
• Used inappropriately in non-technical contexts.

Frequently asked questions about Radar

What does Radar mean?

A system that uses waves to find objects and measure their distance.

What is the definition of Radar?

a system that uses radio waves to find the position and movement of objects, for example planes and ships, when they cannot be seen

How do you use Radar in a sentence?

They located the ship by radar.

Can you give another example of Radar?

a radar screen

What are synonyms for Radar?

Common alternatives include detector, sonar, locator.

What is the opposite of Radar?

Opposite meanings include invisibility, undetectability.

What words go with Radar?

It commonly pairs with enemy, police, airborne, be equipped with, operator, station, system, by radar, on radar, off the radar, on the radar.

What are common mistakes when using Radar?

Confused with 'racer' because of similar spelling. Incorrectly pronounced as 'ray-dar' instead of 'rad-ar'. Used inappropriately in non-technical contexts.

How do you pronounce Radar?

US: /["/ˈreɪdɑːr/"]/, UK: /["/ˈreɪdɑː(r)/"]/. Listen to the audio above to hear native pronunciation.

When should I use Radar?

Used in contexts related to navigation, weather, and security. Avoid in casual conversations unless discussing technology. Works in both spoken and written communication.

What CEFR level is Radar?

"Radar" is at C1 level on the CEFR scale.