warn
verb (used with object)
to give notice, advice, or intimation to (a person, group, etc.) of danger, impending evil, possible harm, or anything else unfavorable.
are warning
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present progressiveof warn.present progressive
Used to describe an ongoing action or state that is currently taking place in the immediate present.
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.
Eye experts are warning people to be on the alert for any signs their vision has been damaged by looking at the sun during Wednesday's eclipse.
From BBC ● Aug. 13, 2026
On Wall Street, bond-market professionals are warning that the tremors could affect your portfolio — whether you own bonds or not.
From MarketWatch ● Aug. 12, 2026
But individual ticks are capable of carrying more than one disease simultaneously, and as their territories proliferate, healthcare professionals are warning Americans to pay attention to strange symptoms.
From Slate ● Aug. 6, 2026
But disinformation researchers are warning it could enable bad actors to misuse Google Earth -- a key resource for fact-checking and verification -- to create realistic geospatial fakes.
From Barron's ● Jul. 31, 2026
Some examples are warning devices, bells, whistles, horns, sirens, etc.
From "Music and the Child" by Natalie Sarrazin
