moussavsmousserConfusable pair

Which to use

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

#14,517
“moussa” frequency rank
#33,355
“mousser” frequency rank
47872
confusion score

Side-by-Side Comparison

Feature moussa mousser
Definition Troisième personne du singulier du passé simple du verbe mousser. Produire de la mousse.

Where the eye mixes moussa and mousser

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

6 ch
moussa
7 ch
mousser

Visual trap between moussa and mousser

A purely visual mix-up. moussa (\mu.sa\) and mousser (\mu.se\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 47872, derived from the frequency rank of both members and their visual similarity.

moussa is recorded at frequency rank #14,517, classified as averb, pronounced \mu.sa\. mousser is at rank #33,355, tagged as averb, pronounced \mu.se\.

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 47872, this pair ranks #183,474 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of moussa vs mousser

Shared letters: mosu. Private to "moussa": a. Private to "mousser": er.

"moussa" · 6 letters · shape CVVCCV  ·  "mousser" · 7 letters · shape CVVCCVC

Known mistypes of this pair

  • moussa ← mmoussa · mosusa · mousa · mousas · muossa · omussa
  • mousser ← mmousser · mosuser · mouser · mousesr · mousserr · moussre · muosser · omusser

Frequently Asked Questions

Can "moussa" and "mousser" be used interchangeably?
No. They are said differently (\mu.sa\ versus \mu.se\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "moussa" or "mousser"?
"moussa" is the more common of the two: it sits at frequency rank #14,517 in our French list, against #33,355 for "mousser". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "moussa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mousser" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #183,474 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "moussa" and "mousser" 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 #183,474 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