moisvsmouWhich spelling fits?

Quick tell: mois is a noun, mou is an adjective, so they fill different roles in a sentence.

Which to use

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

#184
“mois” frequency rank
#8,739
“mou” frequency rank
8923
confusion score

Side-by-Side Comparison

Feature mois mou
Definition Chacune des douze parties de l’année, dont chacune contient trente ou trente et un jours, excepté la seconde (février), qui est de vingt-huit jours dans les années ordinaires, et de vingt-neuf dans les années bissextiles. Qui cède facilement au toucher, qui reçoit facilement l’impression des autres corps.

Where the eye mixes mois and mou

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
mois
3 ch
mou

Visual trap between mois and mou

These two trip readers on the page rather than in the ear: mois is \mwa\ while mou is \mu\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 8923, derived from the frequency rank of both members and their visual similarity.

mois is recorded at frequency rank #184, classified as anoun, pronounced \mwa\. mou is at rank #8,739, tagged as anadj, pronounced \mu\.

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 8923, this pair ranks #418,409 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mois vs mou

Shared letters: mo. Private to "mois": is. Private to "mou": u.

"mois" · 4 letters · shape CVVC  ·  "mou" · 3 letters · shape CVV

Known mistypes of this pair

  • moismios · mmois · moiss · mosi

Frequently Asked Questions

Do "mois" and "mou" mean the same thing in a sentence?
No - they are not even the same part of speech. "mois" is a noun and "mou" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "mois" or "mou"?
"mois" is the more common of the two: it sits at frequency rank #184 in our French list, against #8,739 for "mou". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "mois" and "mou" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "mois" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #418,409 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mois" and "mou" also get mixed up with nearby pairs, the highest-scored neighbour is "mou vs MWh". 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 #418,409 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