moisivsmorseConfusable pair

Quick tell: moisi is a adjective, morse is a noun, so they fill different roles in a sentence.

Which to use

“moisi” is an adjective and “morse” is a noun - they look or sound alike but fill different roles in a sentence.

#32,913
“moisi” frequency rank
#25,049
“morse” frequency rank
57962
confusion score

Side-by-Side Comparison

Feature moisi morse
Definition Attaqué par la moisissure. Espèce de mammifère marin amphibie très grand, vivant autour du pôle Nord, à allure massive, aux moustaches drues, et de longues défenses chez le mâle.

Where the eye mixes moisi and morse

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. moisi (CVVCV) and morse (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
moisi
5 ch
morse

Why the eye confuses moisi with morse

These two trip readers on the page rather than in the ear: moisi is \mwa.zi\ while morse is \mɔʁs\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 57962, derived from the frequency rank of both members and their visual similarity.

moisi is recorded at frequency rank #32,913, classified as anadj, pronounced \mwa.zi\. morse is at rank #25,049, tagged as anoun, pronounced \mɔʁs\.

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 57962, this pair ranks #111,876 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of moisi vs morse

Shared letters: mos. Private to "moisi": i. Private to "morse": er.

"moisi" · 5 letters · shape CVVCV  ·  "morse" · 5 letters · shape CVCCV

Known mistypes of this pair

  • moisi ← miosi · mmoisi · moiis · moissi · mosii · omisi
  • morse ← mmorse · mores · morrse · morsse · mosre · mrose · omrse

Frequently Asked Questions

Can "moisi" and "morse" be used interchangeably?
No - they are not even the same part of speech. "moisi" is an adjective and "morse" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "moisi" or "morse"?
"morse" is the more common of the two: it sits at frequency rank #25,049 in our French list, against #32,913 for "moisi". 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 "moisi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "morse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #111,876 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "moisi" and "morse" also get mixed up with nearby pairs, the highest-scored neighbour is "moisi vs moisie". 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 #111,876 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