often attributive
1
: a device or system consisting usually of a synchronized radio transmitter and receiver that emits radio waves and processes their reflections for display and is used especially for detecting and locating objects (such as aircraft) or surface features (as of a planet)
2
: range of notice
fell off the radar after losing their first three games
Examples of radar in a Sentence
The approaching planes were detected by radar.
Recent Examples on the Web
The two deteriorating sites are both on the radar of municipal officials.
—
Kenneth R. Gosselin, Hartford Courant, 21 July 2025
Northrop and Johnson have the boat listed for sale, and Ares Shipyard is one of the exciting new superyacht brands to have on your radar in 2025.
—Katia Damborsky, Forbes.com, 20 July 2025
Better Homes & Gardens Wooden Ezra Sling Accent Chair
The most comfortable spaces typically have more than one accent chair, and the Wooden Ezra Sling Accent Chair is another style to have on your radar.
—Carly Totten, Better Homes & Gardens, 19 July 2025
Until a few weeks ago, a 30% tariff wasn’t even on the radar.
—Jim Edwards, Fortune, 18 July 2025
See All Example Sentences for radar
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Kenneth R. Gosselin, Hartford Courant, 21 July 2025
Northrop and Johnson have the boat listed for sale, and Ares Shipyard is one of the exciting new superyacht brands to have on your radar in 2025.
—Katia Damborsky, Forbes.com, 20 July 2025
Better Homes & Gardens Wooden Ezra Sling Accent Chair
The most comfortable spaces typically have more than one accent chair, and the Wooden Ezra Sling Accent Chair is another style to have on your radar.
—Carly Totten, Better Homes & Gardens, 19 July 2025
Until a few weeks ago, a 30% tariff wasn’t even on the radar.
—Jim Edwards, Fortune, 18 July 2025
See All Example Sentences for radar
Cite this Entry
“Radar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radar. Accessed 30 Jul. 2025.
Copy CitationKids Definition
radar
noun
ra·dar
ˈrā-ˌdär 
: a device that sends out radio waves for detecting and locating an object by the reflection of the radio waves and that may use this reflection to find out the position and speed of the object
Etymology
from radio detecting and ranging
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