malusvsmucusWhich spelling fits?

Which to use

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

#24,666
“malus” frequency rank
#39,906
“mucus” frequency rank
64572
confusion score

Side-by-Side Comparison

Feature malus mucus
Definition Pénalité financière à laquelle sont soumis les assurés ayant trop d’accidents. Mucosité, sécrétion visqueuse et translucide, produite par une muqueuse.

Where the eye mixes malus and mucus

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
malus
5 ch
mucus

Visual trap between malus and mucus

A purely visual mix-up. malus (\ma.lys\) and mucus (\my.kys\) 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 2 positions. Our composite confusion score for this pair is 64572, derived from the frequency rank of both members and their visual similarity.

malus is recorded at frequency rank #24,666, classified as anoun, pronounced \ma.lys\. mucus is at rank #39,906, tagged as anoun, pronounced \my.kys\.

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 64572, this pair ranks #76,406 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of malus vs mucus

Shared letters: msu. Private to "malus": al. Private to "mucus": c.

"malus" · 5 letters · shape CVCVC  ·  "mucus" · 5 letters · shape CVCVC

Known mistypes of this pair

  • malusamlus · mallus · malsu · maluss · mauls · mlaus · mmalus
  • mucusmcuus · mmucus · muccus · mucuss · muucs · umcus

Frequently Asked Questions

Can "malus" and "mucus" be used interchangeably?
No. They are said differently (\ma.lys\ versus \my.kys\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "malus" vs "mucus" - which ranks higher?
"malus" is the more common of the two: it sits at frequency rank #24,666 in our French list, against #39,906 for "mucus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "malus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mucus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #76,406 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "malus" and "mucus" also get mixed up with nearby pairs, the highest-scored neighbour is "motus vs mucus". 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 #76,406 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