Which to use
“foirer” is a verb and “foireux” is an adjective - they look or sound alike but fill different roles in a sentence.
- #25,319
- “foirer” frequency rank
- #27,439
- “foireux” frequency rank
- 52758
- confusion score
Side-by-Side Comparison
| Feature | foirer | foireux |
|---|---|---|
| Definition | Avoir la diarrhée, évacuer des excréments liquides. | Qui se rapporte à la colique, la diarrhée. |
Where the eye mixes foirer and foireux
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. foirer runs 6 letters (CVVCVC) against foireux's 7 (CVVCVVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses foirer with foireux
These two trip readers on the page rather than in the ear: foirer is \fwa.ʁe\ while foireux is \fwa.ʁø\. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 52758, derived from the frequency rank of both members and their visual similarity.
foirer is recorded at frequency rank #25,319, classified as averb, pronounced \fwa.ʁe\. foireux is at rank #27,439, tagged as anadj, pronounced \fwa.ʁø\.
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 52758, this pair ranks #145,506 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of foirer vs foireux
Shared letters: efior. Private to "foirer": -. Private to "foireux": ux.
"foirer" · 6 letters · shape CVVCVC · "foireux" · 7 letters · shape CVVCVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "foirer" for "foireux" ever safe?
Which is more common, "foirer" or "foireux"?
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 "foirer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "foireux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #145,506 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "foirer" and "foireux" also get mixed up with nearby pairs, the highest-scored neighbour is "foirer vs fouiner". 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 #145,506 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.