Which to use
“caution” is a noun and “cautious” is an adjective - they look or sound alike but fill different roles in a sentence.
- #7,426
- “caution” frequency rank
- #9,717
- “cautious” frequency rank
- 17143
- confusion score
Side-by-Side Comparison
| Feature | caution | cautious |
|---|---|---|
| Definition | Prudence when faced with, or when expecting to face, danger; care taken in order to avoid risk or harm. | Using or exercising caution; careful; tentative |
Where the eye mixes caution and cautious
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Visual trap between caution and cautious
These two trip readers on the page rather than in the ear: caution is /ˈkɔːʃ(ə)n/ while cautious is /ˈkɔːʃəs/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 17143, derived from the frequency rank of both members and their visual similarity.
caution is recorded at frequency rank #7,426, classified as anoun, pronounced /ˈkɔːʃ(ə)n/. cautious is at rank #9,717, tagged as anadj, pronounced /ˈkɔːʃəs/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 17143, this pair ranks #453,347 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caution vs cautious
Shared letters: aciotu. Private to "caution": n. Private to "cautious": s.
"caution" · 7 letters · shape CVVCVVC · "cautious" · 8 letters · shape CVVCVVVC
Known mistypes of this pair
Frequently Asked Questions
Do "caution" and "cautious" mean the same thing in a sentence?
Which is more common, "caution" or "cautious"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "caution" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cautious" - compare definitions side by side with the headword page. Word entry
- This pair ranks #453,347 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "caution" and "cautious" also get mixed up with nearby pairs, the highest-scored neighbour is "carrion vs caution". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #453,347 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.