mœursvsmousWhat's the difference?

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

Which to use

“mœurs” is a noun and “mous” is an adjective — they look or sound alike but fill different roles in a sentence.

#10,361
“mœurs” frequency rank
#21,092
“mous” frequency rank
31453
confusion score

Side-by-Side Comparison

Feature mœurs mous
Definition Habitudes, naturelles ou acquises, relatives à la pratique du bien ou du mal au sens de la morale. Masculin pluriel de mou.

Where the spellings diverge

Shared letters are muted; the letters that actually set mœurs and mous apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch
mœurs
4 ch
mous

Spelling & Dictionary Insight

mœurs and mous form a confusable pair in the French index, two distinct headwords that writers substitute for each other because they look alike, sound alike, or both. The pair differs by 1 letter(s) in length, which is exactly the edit distance at which substitution errors are most common: close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 31453, derived from the frequency rank of both members and their visual similarity.

Side-by-side the two words carry different dictionary signatures. mœurs is recorded at frequency rank #10,361, classified as anoun, pronounced \mœʁ\. mous is at rank #21,092, tagged as anadj, pronounced \mu\. When the two words belong to different parts of speech, sentence grammar alone usually resolves the confusion; when they share a part of speech, only semantic context separates them, which is why the pair earns a dedicated lookup page.

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. Automated spell-checkers cannot flag confusable substitution because every member of the pair is a valid dictionary word, only the writer, or a grammar/context tool, can confirm that the chosen spelling matches the intended meaning. PlainSpell's confusable index exists precisely to make that contextual choice explicit.

Frequency comparison

mœurs#10,361
mous#21,092

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "mœurs" and "mous" be used interchangeably?
No, "mœurs" and "mous" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.
Where can I learn more about commonly confused words?
PlainSpell provides side-by-side comparisons for thousands of confusable word pairs across English, Spanish, Portuguese, French, and German. Browse all confusable pairs or check our spelling guides for additional tips and memory tricks.

Remembering mœurs vs mous

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “mœurs”; for an adjective, it's “mous”.
  • See each word in full — definition, IPA, etymology and its other confusables. Full “mœurs” entry
  • Browse more pairs writers mix up most. Most confusable

Nearby confusable pairs

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