agréervsaigreurConfusable pair

Quick tell: agréer is a verb, aigreur is a noun, so they fill different roles in a sentence.

Which to use

“agréer” is a verb and “aigreur” is a noun - they look or sound alike but fill different roles in a sentence.

#37,642
“agréer” frequency rank
#43,764
“aigreur” frequency rank
81406
confusion score

Side-by-Side Comparison

Feature agréer aigreur
Definition Prendre à gré ; recevoir favorablement. Qualité de ce qui est aigre, acide, notamment pour un aliment.

Where the eye mixes agréer and aigreur

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. agréer runs 6 letters (VCCVVC) against aigreur's 7 (VVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
agréer
7 ch
aigreur

Visual trap between agréer and aigreur

These two trip readers on the page rather than in the ear: agréer is \a.ɡʁe.e\ while aigreur is \ɛ.ɡʁœʁ\. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 81406, derived from the frequency rank of both members and their visual similarity.

agréer is recorded at frequency rank #37,642, classified as averb, pronounced \a.ɡʁe.e\. aigreur is at rank #43,764, tagged as anoun, pronounced \ɛ.ɡʁœʁ\.

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 81406, this pair ranks #18,831 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of agréer vs aigreur

Shared letters: aegr. Private to "agréer": é. Private to "aigreur": iu.

"agréer" · 6 letters · shape VCCVVC  ·  "aigreur" · 7 letters · shape VVCCVVC

Known mistypes of this pair

  • aigreur ← agireur · aigerur · aiggreur · aigreru · aigreurr · aigrreur · aigruer · airgeur

Frequently Asked Questions

Can "agréer" and "aigreur" be used interchangeably?
No - they are not even the same part of speech. "agréer" is a verb and "aigreur" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "agréer" vs "aigreur" - which ranks higher?
"agréer" is the more common of the two: it sits at frequency rank #37,642 in our French list, against #43,764 for "aigreur". 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 "agréer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aigreur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,831 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "agréer" and "aigreur" also get mixed up with nearby pairs, the highest-scored neighbour is "agréer vs agrégés". 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 #18,831 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