Alert
Alert noun - The act or an instance of telling beforehand of danger or risk.
Usage example: the white flash of the doe's raised tail, giving the “danger” alert to her fawns
Warning is a synonym for alert in caution topic. In some cases you can use "Warning" instead a noun "Alert", when it comes to topics like notice, protection, warn, admonition. popular alternative
Warning
Warning noun - The act or an instance of telling beforehand of danger or risk.
Usage example: she delivered a strict warning that anyone who was caught stealing would be fired
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Synonyms for Warning
Alert is a synonym for warning in notice topic. You can use "Alert" instead a noun "Warning", if it concerns topics such as caution, protection, warn, admonition. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
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Do you want it to say, Intruder alert or do you want it to say something more dramatic like Warning intruder alert!
Source: Red Alert - After a massive UFO is seen approaching Earth, the word ALERT is shown flashing on a screen, warning that...Lois Lane's photocopier has run out of toner.
Source: Red Alert -
However, when encountering a Boss Battle, the loading screen was instead the word "Warning" flashing with an alert siren in the background.
Source: Fight Woosh
Cite this Source
Warning and Alert. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/alert/warning
Alert & Warning. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/alert/warning>.
Warning or Alert. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/alert/warning.
Google Ngram Viewer shows how "alert" and "warning" have occurred on timeline