Which to use
“perf” and “petro” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #24,321
- “perf” frequency rank
- #39,935
- “petro” frequency rank
- 64256
- confusion score
Side-by-Side Comparison
| Feature | perf | petro |
|---|---|---|
| Definition | Performance. | Monnaie virtuelle émise par le Venezuela. |
Where the eye mixes perf and petro
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between perf and petro
A purely visual mix-up. perf (\pɛʁf\) and petro (\pe.tʁo\) 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 64256, 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\. petro is at rank #39,935, tagged as anoun, pronounced \pe.tʁo\.
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 64256, this pair ranks #77,925 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of perf vs petro
Shared letters: epr. Private to "perf": f. Private to "petro": ot.
"perf" · 4 letters · shape CVCC · "petro" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "perf" and "petro" be used interchangeably?
Which is more common, "perf" or "petro"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "perf" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "petro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #77,925 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "perf" and "petro" also get mixed up with nearby pairs, the highest-scored neighbour is "pètes vs petro". 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 #77,925 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.