📡radar

noun
/ˈreɪdɑːr/

Meaning

a system that uses radio waves to detect the position and speed of objects
a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves

Example Sentences

The plane was detected by the airport's radar system.

The radar detected an unknown aircraft approaching the base.

Example Expressions

under the radar

Synonyms

scanner, detector, sensor, locator, detection system, sonar, tracking device
Entry 1
scanner, detector, sensor, locator
Entry 2
detection system, sonar, tracking device

Antonyms

blind spot, invisibility

Collocations

radar system, radar signal, air radar, weather radar, radar screen, radar detection
Entry 1
radar system, radar signal, air radar, weather radar
Entry 2
radar screen, radar signal, radar detection

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