warning signal

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.

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

Falling asset prices can be an early warning signal that investors should heed, especially when declines are persistent.

From Barron's • Mar. 13, 2026

Historically, the absence of a year-end rally has carried a warning signal.

From MarketWatch • Dec. 21, 2025

Trinity House, which manages more than 60 lighthouses across the UK, said there was an issue with the "audible hazard warning signal" on Longships.

From BBC • Feb. 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