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.
has warned
-
present perfectof warn (3rd person singular).present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the 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.
The UN has warned of "widening assaults on press freedom by Egyptian authorities, including the targeting, persecution and harassment of independent journalists".
From BBC ● Nov. 11, 2026
Geely founder Li Shufu has warned against the bitter competition besetting local industry and pushing companies overseas.
From The Wall Street Journal ● Nov. 10, 2026
Pressure on officials: The Justice Department has warned election officials in every state that they could face prosecution if they knowingly allow non-citizens to vote.
From Barron's ● Oct. 30, 2026
The Bank of England has warned, external this could leave institutions struggling to fix vulnerabilities before attackers take advantage of them.
From BBC ● Oct. 30, 2026
Every time he has talked to his mother, she has warned him not to come—it’s too dangerous.
From "Enrique's Journey" by Sonia Nazario
