warning

1 of 2

noun

warn·​ing ˈwȯr-niŋ How to pronounce warning (audio)
1
: the act of warning : the state of being warned
he had warning of his illness
2
: something that warns or serves to warn
especially : a notice or bulletin that alerts the public to an imminent hazard (such as a tornado, thunderstorm, or flood)

warning

2 of 2

adjective

: serving as an alarm, signal, summons, or admonition
a warning bell
a warning shot
warningly adverb

Examples of warning in a Sentence

Noun She gave me a warning about the difficulties of the job. She issued a stern warning against making changes too quickly. Let that be a warning to you. We had no warning of the dangers that were ahead of us. Without any warning she turned around and ran. The storm struck without warning. I was stopped for speeding, but the policeman just gave me a warning. Adjective usually gave her trademark warning look when the children were getting out of hand
Recent Examples on the Web
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.
Noun
The Federal Bureau of Investigation and the Cybersecurity and Infrastructure Security Agency recently issued a joint advisory warning that two-factor authentication needed to be activated for all webmail and VPN accounts as a matter of urgency. Davey Winder, Forbes, 22 Mar. 2025 Israel’s military said Friday that its forces were planning fresh assaults into three neighborhoods west of Gaza City and issued warnings on social media for Palestinians to evacuate the areas. Bassem Mroue and Wafaa Shurafa, Los Angeles Times, 22 Mar. 2025
Adjective
The bureau also will post more warning notices at 750 livestock sale facilities and review other potential changes to federal regulations. Scott Sonner, Star Tribune, 27 July 2021 In response, statistical authorities around the world could do little but issue warning press releases. Andrew Whitby, Time, 17 Apr. 2020 See All Example Sentences for warning

Word History

Etymology

Noun

Middle English warnyng, warnynge, going back to Old English warnung, wearning, from wearnian "to warn" + -ung, -ing -ing entry 3

Adjective

from attributive use of warning entry 1

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Adjective

1511, in the meaning defined above

Time Traveler
The first known use of warning was before the 12th century

Cite this Entry

“Warning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warning. Accessed 30 Mar. 2025.

Kids Definition

warning

noun
warn·​ing
ˈwȯr-niŋ
1
: the act of warning : the state of being warned
he had warning of his illness
2
: something that warns
storm warnings
warning adjective
warningly adverb

More from Merriam-Webster on warning

Last Updated: - Updated example sentences
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