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  • early-warning system
    early-warning system
    noun
    a network of radar installations designed to detect enemy aircraft or missiles in time for the effective deployment of defense systems.
  • early warning system
    early warning system
    noun
    a network of radar and communications units intended to detect at the earliest possible moment an attack by enemy aircraft or missiles

early-warning system

American  
[ur-lee wawr-ning] / ˈɜr li ˈwɔr nɪŋ /

noun

  1. Military. a network of radar installations designed to detect enemy aircraft or missiles in time for the effective deployment of defense systems.

  2. any series of steps established to spot potential problems.


early warning system British  

noun

  1. a network of radar and communications units intended to detect at the earliest possible moment an attack by enemy aircraft or missiles

  2. anything that gives advance notice of something

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of early-warning system

First recorded in 1945–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Rinz’s research points to an early-warning system that may flag trouble ahead.

From Barron's May 22, 2026

The first calculation of the earthquake early-warning system will still rely on seismic sensors, which measure ground velocity and acceleration, De Groot said.

From Los Angeles Times Jun. 5, 2024

The researchers are now actively working on identifying compounds and microbes in the water column that serve as an early-warning system for coral reefs under stress.

From Science Daily Feb. 13, 2024

What’s more, an over-the-horizon early-warning system the Soviet Union built in Ukraine in 1976 had been shuttered by the end of the Cold War.

From Science Magazine Nov. 17, 2023

You crackled when you neared his desk—his early-warning system.

From "Native Speaker" by Chang-rae Lee

The 61-year-old, a previous president of the UN General Assembly, has suggested creating an "early warning" system to detect and flag signs of impending conflict.

From Barron's Jul. 23, 2026

Researchers have figured out how to develop hurricane warnings, tsunami warnings, even an earthquake early warning system.

From Los Angeles Times Jul. 14, 2026

She explains that investor buying and selling serves as an early warning system for a fund’s future.

From The Wall Street Journal Jun. 4, 2026

This year's training has just started for the latest monitoring volunteers in a bid to expand the early warning system even further.

From BBC May 26, 2026

The early warning system worked perfectly in Fukushima prefecture.

From "Meltdown" by Deirdre Langeland

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