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.

Notably, a doji candle in September provided an early warning signal that upside momentum was faltering.

From Barron's • Jan. 5, 2026

The clogged pathways are known as "enlarged perivascular spaces," and the findings suggest they could serve as an early warning signal for Alzheimer's, the most common form of dementia.

From Science Daily • Jan. 3, 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

I know it’s some kind of subconscious warning signal, and now instead of waiting for the memory to come to me, I close my eyes and reach out for it.

From "Flowers for Algernon" by Daniel Keyes