Which to use
“prog” and “proof” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #30,751
- “prog” frequency rank
- #43,613
- “proof” frequency rank
- 74364
- confusion score
Side-by-Side Comparison
| Feature | prog | proof |
|---|---|---|
| Definition | Programmation. | Preuve (définitive). |
Where the eye mixes prog and proof
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between prog and proof
A purely visual mix-up. prog (\pʁɔɡ\) and proof (\ˈpɹuːf\) 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 74364, derived from the frequency rank of both members and their visual similarity.
prog is recorded at frequency rank #30,751, classified as anoun, pronounced \pʁɔɡ\. proof is at rank #43,613, tagged as anoun, pronounced \ˈpɹuːf\.
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 74364, this pair ranks #37,390 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of prog vs proof
Shared letters: opr. Private to "prog": g. Private to "proof": f.
"prog" · 4 letters · shape CCVC · "proof" · 5 letters · shape CCVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "prog" for "proof" ever safe?
Frequency check: "prog" vs "proof" - which ranks higher?
What to do next
Eye-level mix-up between "prog" and "proof" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "prog" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "proof" - compare definitions side by side with the headword page. Word entry
- This pair ranks #37,390 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "prog" and "proof" also get mixed up with nearby pairs, the highest-scored neighbour is "proof vs proud". 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 #37,390 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.