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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.

The families will call for an early-warning system that would allow parents and whistleblowers to report concerns in early-years settings to an independent external body.

From BBC • Mar. 2, 2026

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

It can act as an early-warning system to predict impending incidents of brutality.

From Scientific American • Nov. 1, 2023

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

From "Native Speaker" by Chang-rae Lee