Which to use
“can't” and “cannot” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #154
- “can't” frequency rank
- #802
- “cannot” frequency rank
- 956
- confusion score
Side-by-Side Comparison
| Feature | can't | cannot |
|---|---|---|
| Definition | Cannot (negative auxiliary); be unable to; not have the ability to (whether due to lacking relevant strength or skill or knowledge or supplies, or due to logical impossibility, etc). | Can not; be unable to (whether due to physical inability, logical impossibility, etc). |
Where the spellings diverge
Shared letters are muted; the letters that actually set can't and cannot apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
can't and cannot form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 956, derived from the frequency rank of both members and their visual similarity.
can't is recorded at frequency rank #154, classified as averb, pronounced /kɑːnt/. 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 956, this pair ranks #528,428 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "can't" and "cannot" be used interchangeably?
Remembering can't vs cannot
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “can't” entry
- Browse more pairs most likely to be confused. Most confusable