Which to use
“proof” and “pros” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,052
- “proof” frequency rank
- #8,713
- “pros” frequency rank
- 10765
- confusion score
Side-by-Side Comparison
| Feature | proof | pros |
|---|---|---|
| Definition | An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial. | plural of pro |
Where the eye mixes proof and pros
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: proof vs pros
A purely visual mix-up. proof (/pɹuːf/) and pros (/pɹəʊz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 10765, derived from the frequency rank of both members and their visual similarity.
proof is recorded at frequency rank #2,052, classified as anoun, pronounced /pɹuːf/. pros is at rank #8,713, tagged as anoun, pronounced /pɹəʊz/.
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 10765, this pair ranks #490,642 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of proof vs pros
Shared letters: opr. Private to "proof": f. Private to "pros": s.
"proof" · 5 letters · shape CCVVC · "pros" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Can "proof" and "pros" be used interchangeably?
In ordinary English text, does "proof" or "pros" show up more?
After this comparison
Eye-level mix-up between "proof" and "pros" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "proof" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pros" - compare definitions side by side with the headword page. Word entry
- This pair ranks #490,642 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "proof" and "pros" also get mixed up with nearby pairs, the highest-scored neighbour is "pecs vs pros". 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 #490,642 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.