Which to use
“mousser” is a verb and “mousseux” is an adjective - they look or sound alike but fill different roles in a sentence.
- #33,355
- “mousser” frequency rank
- #32,079
- “mousseux” frequency rank
- 65434
- confusion score
Side-by-Side Comparison
| Feature | mousser | mousseux |
|---|---|---|
| Definition | Produire de la mousse. | Qui ressemble à de la mousse. |
Where the eye mixes mousser and mousseux
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. mousser runs 7 letters (CVVCCVC) against mousseux's 8 (CVVCCVVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses mousser with mousseux
These two trip readers on the page rather than in the ear: mousser is \mu.se\ while mousseux is \mu.sø\. 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 65434, derived from the frequency rank of both members and their visual similarity.
mousser is recorded at frequency rank #33,355, classified as averb, pronounced \mu.se\. mousseux is at rank #32,079, tagged as anadj, pronounced \mu.sø\.
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 65434, this pair ranks #72,351 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of mousser vs mousseux
Shared letters: emosu. Private to "mousser": r. Private to "mousseux": x.
"mousser" · 7 letters · shape CVVCCVC · "mousseux" · 8 letters · shape CVVCCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "mousser" and "mousseux" be used interchangeably?
Frequency check: "mousser" vs "mousseux" - which ranks higher?
What to do next
Eye-level mix-up between "mousser" and "mousseux" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "mousser" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mousseux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #72,351 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "mousser" and "mousseux" also get mixed up with nearby pairs, the highest-scored neighbour is "moser vs mousser". 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 #72,351 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.