Synonyms of caution
1
: warning, admonishment
Her comments were intended as a caution to us to protect our property.
2
: precaution
a surgeon taking the caution of sterilizing his instruments
3
: prudent forethought to minimize risk
Use caution when operating a chainsaw.
4
: one that astonishes or commands attention
Some shoes you see … these days are a caution.—Esquire

caution

2 of 2

verb

transitive verb

: to advise caution to : warn
She cautioned him not to act rashly.

Examples of caution in a Sentence

Noun You should use caution when operating the electric saw. He injected a note of caution in his talk. Her financial adviser urged caution before investing in the project. The roads are slippery: drive with extreme caution. Her comments were intended as a caution to us to protect our property. A note of caution: be sure that the electricity is off before you install the ceiling fan. She was given a caution by the magistrate. Verb Officials are cautioning that the war may continue for years. “Don't decide too quickly,” she cautioned. He was cautioned for speeding.
Recent Examples on the Web
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Noun
Special tools were then used to carry out the delicate operation, and extra caution was exercised to avoid any vibrations while approaching the wreck that may set off the unexploded bombs still inside the wreck. — Muskan Bhatia, Interesting Engineering, 4 Nov. 2026 The district posted the announcement on X, asking families to use caution when traveling to and from school. — Ana Maria Soler, CBS News, 4 Nov. 2026
Verb
The company cautioned that Claude can make mistakes in its responses and advised users to check important figures with their banks. — Neetika Walter, Interesting Engineering, 6 Nov. 2026 Analysts caution that Federal Reserve monetary policy and corporate earnings cycles exert a far greater influence on equity performance than election outcomes alone. — CNBC, 5 Nov. 2026 See All Example Sentences for caution

Word History

Etymology

Noun

Latin caution-, cautio precaution, from cavēre to be on one's guard — more at hear

First Known Use

Noun

1566, in the meaning defined at sense 1

Verb

1683, in the meaning defined above

Time Traveler
The first known use of caution was in 1566

Browse Nearby Words

Cite this Entry

“Caution.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caution. Accessed 6 Nov. 2026.

Kids Definition

caution

1 of 2 noun
1
2
: carefulness in regard to danger
3
: someone or something that astonishes or catches one's attention

caution

2 of 2 verb
: to advise caution to : warn
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