caution

1 of 2

noun

cau·​tion ˈkȯ-shən 

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

cautionary

ˈkȯ-shə-ˌner-ē 

-ne-rē

adjective

caution

2 of 2

verb

cautioned; cautioning ˈkȯ-sh(ə-)niŋ 

transitive verb

: to advise caution to : warn

She cautioned him not to act rashly.

Synonyms of caution

Noun

• prudence
• carefulness
• care
• circumspection
• cautiousness

Verb

• warn
• alert
• advise

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

Noun

The first caution for an incident on the track in the Cup Series race came when AJ Allmendinger lost control of his Chevrolet with 67 laps remaining. — CBS News, 13 July 2026

This would be a caution, an alert — a way to avert collisions. — Doug Turnbull, AJC.com, 12 July 2026

Verb

Meehan cautioned that the shorter-term deal shouldn’t be construed as Bedard being uneasy about where things are in Chicago, even after three straight bottom-three finishes. — Mark Lazerus, New York Times, 19 July 2026

Why self-diagnosing can be misleading While social media can be a helpful starting point for recognizing symptoms, experts caution against self-diagnosis without a professional evaluation. — Rachel Hale, USA Today, 19 July 2026

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

Phrases Containing caution

• err on the side of caution
• throw/fling/cast caution to the wind

Rhymes for caution

• washin
• laplacian
• poblacion
• precaution

Kids Definition

caution

1 of 2 noun

cau·​tion ˈkȯ-shən 

1

: admonition, warning

2

: carefulness in regard to danger

3

: someone or something that astonishes or catches one's attention

caution

2 of 2 verb

cautioned; cautioning ˈkȯ-sh(ə-)niŋ 

: to advise caution to : warn