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warning signal

NOUN

alarum

Synonyms

STRONG

alert bell signal siren warning

WEAK

call to arms

NOUN

beacon

Synonyms

STRONGEST

flare lantern radar

STRONG

alarm alert balefire beam bonfire guidepost heliograph lamp lighthouse lodestar pharos rocket sign watchtower

WEAK

signal fire smoke signal

NOUN

distress signal

Synonyms

WEAK

Mayday SOS alarm burglar alarm call for help danger signal fire alarm flare notice to mariners signal of distress

NOUN

high sign

Synonyms

WEAK

alert signal the nod the wink

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.

So how should investors play the current warning signal?

From MarketWatch • May 7, 2026

Acute pain acts as a warning signal, starting when injured tissue, such as a stubbed toe, sends messages through the spinal cord to the brain.

From Science Daily • Apr. 27, 2026

Analysts said the data is a warning signal.

From Barron's • Mar. 24, 2026

Liverpool's relative stroll towards a 20th title carries a heavy warning signal to the rivals who must now attempt to knock the Premier League crown off their heads next season.

From BBC • Apr. 28, 2025

Obviously the red light was some kind of a warning signal, both outside the door and in—“laboratory animal at large.”

From "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien

warning signal

Example Sentences

Related Words