meivsmonTell them apart

Quick tell: mei is a conjunction, mon is a determiner, so they fill different roles in a sentence.

Which to use

“mei” is a conjunction and “mon” is a determiner - they look or sound alike but fill different roles in a sentence.

#21,392
“mei” frequency rank
#66
“mon” frequency rank
21458
confusion score

Side-by-Side Comparison

Feature mei mon
Definition Ni (liaison simple). Marque la possession ou l’appartenance. Le possesseur est le locuteur, ce qu’il possède est au masculin singulier.

Where the eye mixes mei and mon

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
mei
3 ch
mon

Why the eye confuses mei with mon

These two trip readers on the page rather than in the ear: mei is \ˈmɛi\ while mon is \mɔ̃\. 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 (conjunction vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 21458, derived from the frequency rank of both members and their visual similarity.

mei is recorded at frequency rank #21,392, classified as aconj, pronounced \ˈmɛi\. mon is at rank #66, tagged as adet, pronounced \mɔ̃\.

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 21458, this pair ranks #363,071 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mei vs mon

Shared letters: m. Private to "mei": ei. Private to "mon": no.

"mei" · 3 letters · shape CVV  ·  "mon" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "mei" for "mon" ever safe?
No - they are not even the same part of speech. "mei" is a conjunction and "mon" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "mei" or "mon" show up more?
"mon" is the more common of the two: it sits at frequency rank #66 in our French list, against #21,392 for "mei". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "mei" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #363,071 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "mei" and "mon" also get mixed up with nearby pairs, the highest-scored neighbour is "mei vs MWh". Nearby pair

Confusion rank #363,071 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