warning sign
noun
: something which shows that something else will happen
Falling prices may be a warning sign of a recession.
Examples of warning sign in a Sentence
Recent Examples on the Web
There’s no single warning sign, no urgent alert—just a steady erosion of effectiveness that continues until someone decides to intervene.
—
Sergii Denysenko, Forbes.com, 29 Aug. 2025
Another warning sign is the massive amount of spending on data centers to support all the theoretical future demand for AI use.
—Dave Smith, Fortune, 24 Aug. 2025
Complicating matters further, head pain can sometimes be a warning sign of something more serious, such as an infection or vascular problem.
—Daryl Austin, USA Today, 21 Aug. 2025
The ease with which Crystal Palace played through the middle of them in the build-up to their two goals in the Community Shield was a final warning sign that Liverpool need to return to the compact structure that was pivotal to their title win last season.
—Andy Jones, New York Times, 14 Aug. 2025
See All Example Sentences for warning sign
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Sergii Denysenko, Forbes.com, 29 Aug. 2025
Another warning sign is the massive amount of spending on data centers to support all the theoretical future demand for AI use.
—Dave Smith, Fortune, 24 Aug. 2025
Complicating matters further, head pain can sometimes be a warning sign of something more serious, such as an infection or vascular problem.
—Daryl Austin, USA Today, 21 Aug. 2025
The ease with which Crystal Palace played through the middle of them in the build-up to their two goals in the Community Shield was a final warning sign that Liverpool need to return to the compact structure that was pivotal to their title win last season.
—Andy Jones, New York Times, 14 Aug. 2025
See All Example Sentences for warning sign
Cite this Entry
“Warning sign.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warning%20sign. Accessed 9 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share