Which to use
“millimètres” is a noun and “mm” is a symbol - they look or sound alike but fill different roles in a sentence.
- #14,738
- “millimètres” frequency rank
- #1,092
- “mm” frequency rank
- 15830
- confusion score
Side-by-Side Comparison
| Feature | millimètres | mm |
|---|---|---|
| Definition | Pluriel de millimètre. | Symbole du millimètre, unité de mesure de longueur du Système international (SI), valant 0,001 mètre (10⁻³ mètre). |
Where the spellings diverge
Shared letters are muted; the letters that actually set millimètres and mm apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Say them out loud and nothing separates them: millimètres and mm carry the same recorded pronunciation, \mi.li.mɛtʁ\. Grammar is what tells them apart: one is anoun, the other asymbol, so most sentences will only accept one of them. They differ by 9 letter(s) in length. Our composite confusion score for this pair is 15830, derived from the frequency rank of both members and their visual similarity.
millimètres is recorded at frequency rank #14,738, classified as anoun, pronounced \mi.li.mɛtʁ\. mm is at rank #1,092, tagged as asymbol, pronounced \mi.li.mɛtʁ\.
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 15830, this pair ranks #390,659 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of millimètres vs mm
Shared letters: m. Private to "millimètres": eilrstè. Private to "mm": -.
"millimètres" · 11 letters · shape CVCCVCVCCVC · "mm" · 2 letters · shape CC
Frequency comparison
Frequently Asked Questions
Can "millimètres" and "mm" be used interchangeably?
Which is more common, "millimètres" or "mm"?
Remembering millimètres vs mm
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “millimètres”; for a symbol, it's “mm”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “millimètres” entry
- Browse more pairs most likely to be confused. Most confusable