Which to use
“perf” and “pro” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #24,321
- “perf” frequency rank
- #1,039
- “pro” frequency rank
- 25360
- confusion score
Side-by-Side Comparison
| Feature | perf | pro |
|---|---|---|
| Definition | Performance. | Professionnel, professionnelle. |
Where the eye mixes perf and pro
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between perf and pro
A purely visual mix-up. perf (\pɛʁf\) and pro (\pʁo\) 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 25360, derived from the frequency rank of both members and their visual similarity.
perf is recorded at frequency rank #24,321, classified as anoun, pronounced \pɛʁf\. pro is at rank #1,039, tagged as anoun, pronounced \pʁo\.
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 25360, this pair ranks #341,322 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of perf vs pro
Shared letters: pr. Private to "perf": ef. Private to "pro": o.
"perf" · 4 letters · shape CVCC · "pro" · 3 letters · shape CCV
Known mistypes of this pair
- perf ← eprf · pefr · perff · perrf · pperf · pref
Frequently Asked Questions
Do "perf" and "pro" mean the same thing in a sentence?
Frequency check: "perf" vs "pro" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "perf" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #341,322 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "perf" and "pro" also get mixed up with nearby pairs, the highest-scored neighbour is "peep vs perf". 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 #341,322 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.