Which to use
“cannon” is a noun and “cannot” is a verb - they look or sound alike but fill different roles in a sentence.
- #6,878
- “cannon” frequency rank
- #802
- “cannot” frequency rank
- 7680
- confusion score
Side-by-Side Comparison
| Feature | cannon | cannot |
|---|---|---|
| Definition | A complete assembly, consisting of an artillery tube and a breech mechanism, firing mechanism or base cap, which is a component of a gun, howitzer or mortar, which may include muzzle appendages. | Can not; be unable to (whether due to physical inability, logical impossibility, etc). |
Where the eye mixes cannon and cannot
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between cannon and cannot
These two trip readers on the page rather than in the ear: cannon is /ˈkæn.ən/ while cannot is /ˈkænɒt/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - n in “cannon” becomes t in “cannot”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 7680, derived from the frequency rank of both members and their visual similarity.
cannon is recorded at frequency rank #6,878, classified as anoun, pronounced /ˈkæn.ən/. cannot is at rank #802, tagged as averb, pronounced /ˈkænɒt/.
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 7680, this pair ranks #506,060 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cannon vs cannot
Shared letters: acno. Private to "cannon": -. Private to "cannot": t.
"cannon" · 6 letters · shape CVCCVC · "cannot" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "cannon" for "cannot" ever safe?
In ordinary English text, does "cannon" or "cannot" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "cannon" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cannot" - compare definitions side by side with the headword page. Word entry
- This pair ranks #506,060 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cannon" and "cannot" also get mixed up with nearby pairs, the highest-scored neighbour is "cannon vs caron". 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 #506,060 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.