Alert
Alert verb - To give notice to beforehand especially of danger or risk.
Usage example: alerted us to the possibility that the roads would be flooded and we might have to take a detour
Inform is a synonym for alert in warn topic. In some cases you can use "Inform" instead a verb "Alert", when it comes to topics like action.
Inform
Common collocations
Both words in one sentence
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Half-Life: The Black Mesa Facility would like to inform you that pressing the alert button as a joke is not OK, Dr. Freeman.
Source: Red Alert
Cite this Source
Inform and Alert. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/alert/inform
Alert & Inform. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/alert/inform>.
Inform or Alert. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/alert/inform.
Google Ngram Viewer shows how "alert" and "inform" have occurred on timeline