épiervserrerTell them apart

Which to use

“épier” and “errer” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,447
“épier” frequency rank
#27,802
“errer” frequency rank
77249
confusion score

Side-by-Side Comparison

Feature épier errer
Definition Observer secrètement et avec attention les actions, les discours de quelqu’un, ou ce qui se passe quelque part. Vaguer de côté et d’autre ; aller çà et là.

Where the eye mixes épier and errer

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. épier (VCVVC) and errer (VCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
épier
5 ch
errer

Visual trap between épier and errer

A purely visual mix-up. épier (\e.pje\) and errer (\e.ʁe\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 77249, derived from the frequency rank of both members and their visual similarity.

épier is recorded at frequency rank #49,447, classified as averb, pronounced \e.pje\. errer is at rank #27,802, tagged as averb, pronounced \e.ʁe\.

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 77249, this pair ranks #28,942 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of épier vs errer

Shared letters: er. Private to "épier": ipé. Private to "errer": -.

"épier" · 5 letters · shape VCVVC  ·  "errer" · 5 letters · shape VCCVC

Known mistypes of this pair

  • errer ← ererr · errerr · errre · rerer

Frequently Asked Questions

Is swapping "épier" for "errer" ever safe?
No. They are said differently (\e.pje\ versus \e.ʁe\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "épier" vs "errer" - which ranks higher?
"errer" is the more common of the two: it sits at frequency rank #27,802 in our French list, against #49,447 for "épier". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "épier" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "errer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,942 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "épier" and "errer" also get mixed up with nearby pairs, the highest-scored neighbour is "einer vs épier". 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 #28,942 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