moultvsmuleTell them apart

Quick tell: moult is a adverb, mule is a noun, so they fill different roles in a sentence.

Which to use

“moult” is an adverb and “mule” is a noun - they look or sound alike but fill different roles in a sentence.

#22,008
“moult” frequency rank
#25,051
“mule” frequency rank
47059
confusion score

Side-by-Side Comparison

Feature moult mule
Definition et ou Beaucoup. Note d’usage : Attaché à un verbe. Femelle du mulet, équidé issu du croisement d’un âne et d’une jument et le plus souvent stérile.

Where the eye mixes moult and mule

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

5 ch
moult
4 ch
mule

Why the eye confuses moult with mule

These two trip readers on the page rather than in the ear: moult is \mu\ while mule is \myl\. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47059, derived from the frequency rank of both members and their visual similarity.

moult is recorded at frequency rank #22,008, classified as anadv, pronounced \mu\. mule is at rank #25,051, tagged as anoun, pronounced \myl\.

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 47059, this pair ranks #189,974 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of moult vs mule

Shared letters: lmu. Private to "moult": ot. Private to "mule": e.

"moult" · 5 letters · shape CVVCC  ·  "mule" · 4 letters · shape CVCV

Known mistypes of this pair

  • moultmmoult · molut · moullt · moultt · moutl · muolt · omult
  • mulemlue · mmule · muel · mulle · umle

Frequently Asked Questions

Can "moult" and "mule" be used interchangeably?
No - they are not even the same part of speech. "moult" is an adverb and "mule" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "moult" or "mule"?
"moult" is the more common of the two: it sits at frequency rank #22,008 in our French list, against #25,051 for "mule". 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 "moult" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mule" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #189,974 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "moult" and "mule" also get mixed up with nearby pairs, the highest-scored neighbour is "mud vs mule". 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 #189,974 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