Which to use
“mm” is a symbol and “moi” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #1,092
- “mm” frequency rank
- #73
- “moi” frequency rank
- 1165
- confusion score
Side-by-Side Comparison
| Feature | mm | moi |
|---|---|---|
| Definition | Symbole du millimètre, unité de mesure de longueur du Système international (SI), valant 0,001 mètre (10⁻³ mètre). | Pronom tonique de la première personne du singulier. |
Where the eye mixes mm and moi
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses mm with moi
These two trip readers on the page rather than in the ear: mm is \mi.li.mɛtʁ\ while moi is \mwa\. 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 (symbol vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 1165, derived from the frequency rank of both members and their visual similarity.
mm is recorded at frequency rank #1,092, classified as asymbol, pronounced \mi.li.mɛtʁ\. moi is at rank #73, tagged as apron, pronounced \mwa\.
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 1165, this pair ranks #438,511 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of mm vs moi
Shared letters: m. Private to "mm": -. Private to "moi": io.
"mm" · 2 letters · shape CC · "moi" · 3 letters · shape CVV
Frequently Asked Questions
Can "mm" and "moi" be used interchangeably?
Frequency check: "mm" vs "moi" - which ranks higher?
What to do next
Eye-level mix-up between "mm" and "moi" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "mm" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "moi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #438,511 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "mm" and "moi" also get mixed up with nearby pairs, the highest-scored neighbour is "mm vs MWh". Nearby pair
Confusion rank #438,511 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.