MonsvsmouWhich spelling fits?

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

Which to use

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

#9,199
“Mons” frequency rank
#8,739
“mou” frequency rank
17938
confusion score

Side-by-Side Comparison

Feature Mons mou
Definition Commune et ville wallonne de Belgique, chef-lieu de la province du Hainaut. Qui cède facilement au toucher, qui reçoit facilement l’impression des autres corps.

Where the eye mixes Mons and mou

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

4 ch
Mons
3 ch
mou

Why the eye confuses Mons with mou

These two trip readers on the page rather than in the ear: Mons is \mɔ̃s\ 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 (name vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 17938, derived from the frequency rank of both members and their visual similarity.

Mons is recorded at frequency rank #9,199, classified as aname, pronounced \mɔ̃s\. 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 17938, this pair ranks #380,724 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Mons vs mou

Shared letters: mo. Private to "Mons": ns. Private to "mou": u.

"Mons" · 4 letters · shape CVCC  ·  "mou" · 3 letters · shape CVV

Known mistypes of this pair

  • Monsmmons · mnos · monns · monss · mosn · omns

Frequently Asked Questions

Is swapping "Mons" for "mou" ever safe?
No - they are not even the same part of speech. "Mons" is a name and "mou" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Mons" vs "mou" - which ranks higher?
"mou" is the more common of the two: it sits at frequency rank #8,739 in our French list, against #9,199 for "Mons". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Mons" 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 #380,724 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Mons" and "mou" also get mixed up with nearby pairs, the highest-scored neighbour is "Mons vs Monza". 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 #380,724 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