persvspetroTell them apart

Quick tell: pers is a adjective, petro is a noun, so they fill different roles in a sentence.

Which to use

“pers” is an adjective and “petro” is a noun - they look or sound alike but fill different roles in a sentence.

#17,512
“pers” frequency rank
#39,935
“petro” frequency rank
57447
confusion score

Side-by-Side Comparison

Feature pers petro
Definition Qui est entre le bleu et le vert (surtout en parlant des yeux). Monnaie virtuelle émise par le Venezuela.

Where the eye mixes pers and petro

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
pers
5 ch
petro

Why the eye confuses pers with petro

These two trip readers on the page rather than in the ear: pers is \pɛʁ\ while petro is \pe.tʁo\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 57447, derived from the frequency rank of both members and their visual similarity.

pers is recorded at frequency rank #17,512, classified as anadj, pronounced \pɛʁ\. 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 57447, this pair ranks #115,000 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pers vs petro

Shared letters: epr. Private to "pers": s. Private to "petro": ot.

"pers" · 4 letters · shape CVCC  ·  "petro" · 5 letters · shape CVCCV

Known mistypes of this pair

  • perseprs · perrs · pesr · ppers
  • petroeptro · perto · petor · petrro · pettro · ppetro · ptero

Frequently Asked Questions

Is swapping "pers" for "petro" ever safe?
No - they are not even the same part of speech. "pers" is an adjective and "petro" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "pers" vs "petro" - which ranks higher?
"pers" is the more common of the two: it sits at frequency rank #17,512 in our French list, against #39,935 for "petro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "pers" 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 #115,000 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "pers" 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 #115,000 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list