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.

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

From MarketWatch • Dec. 21, 2025

According to Zhao, the discovery of GSH-DNA adducts creates new opportunities to study how damaged mtDNA functions as a warning signal inside the body.

From Science Daily • Nov. 28, 2025

“We finally have a tactical euphoria warning signal for the first time in 5 years, and for the first time in 18 years excluding COVID,” wrote credit strategists at Deutsche Bank, led by Steve Caprio.

From Barron's • Oct. 20, 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