Caution
Caution verb - To give notice to beforehand especially of danger or risk.
Usage example: the doctor cautioned that I should still be careful using my sprained wrist for the next several days
Warn is a synonym for caution in alert topic. In some cases you can use "Warn" instead a verb "Caution", when it comes to topics like speech, advise, reprimand. popular alternative
Warn
Warn verb - To give notice to beforehand especially of danger or risk.
Usage example: the lifeguard warned the boys that if they continued playing so rough, someone was sure to get hurt
Caution is a synonym for warn in alert topic. You can use "Caution" instead a verb "Warn", if it concerns topics such as speech, advise, give notice of possible occurrence. popular alternative
Mutual synonyms
Common collocations
Both words in one sentence
- The bees in The Secret World warn against falling prey to this; namely, they advise caution against dismissing every false prophecy about the end times, because an "end" is not necessarily instantaneous.
Source: Prophecy Twist -
Content Warnings: Also like Rez, the game warn players susceptible to seizures that they might have to exercise caution while playing.
Source: Video Game / Child of Eden -
Go to their directions page, enter "The Shire" as the start point and "Mordor" as the destination and choose "Walking" as your transportation method and Google will warn you "Use caution One does not simply walk into Mordor."
Source: Walk into Mordor
Cite this Source
Warn and Caution. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/caution/warn
Caution & Warn. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/caution/warn>.
Warn or Caution. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/caution/warn.
Google Ngram Viewer shows how "caution" and "warn" have occurred on timeline