Which to use
“inch” and “insu” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #35,096
- “inch” frequency rank
- #12,987
- “insu” frequency rank
- 48083
- confusion score
Side-by-Side Comparison
| Feature | inch | insu |
|---|---|---|
| Definition | Pouce : unité de mesure de longueur (système impérial britannique). | Utilisé uniquement dans la locution figée à l’insu de quelqu'un, et, dans les locutions analogues, à mon insu, à votre insu… C’est-à-dire la chose n'étant pas sue de quelqu'un, de moi, de vous, etc. |
Where the eye mixes inch and insu
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between inch and insu
A purely visual mix-up. inch (\ɪntʃ\) and insu (\ɛ̃.sy\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48083, derived from the frequency rank of both members and their visual similarity.
inch is recorded at frequency rank #35,096, classified as anoun, pronounced \ɪntʃ\. insu is at rank #12,987, tagged as anoun, pronounced \ɛ̃.sy\.
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 48083, this pair ranks #181,798 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of inch vs insu
Shared letters: in. Private to "inch": ch. Private to "insu": su.
"inch" · 4 letters · shape VCCC · "insu" · 4 letters · shape VCCV
Known mistypes of this pair
Frequently Asked Questions
Can "inch" and "insu" be used interchangeably?
In ordinary French text, does "inch" or "insu" show up more?
Useful next steps
Eye-level mix-up between "inch" and "insu" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "inch" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "insu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #181,798 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "inch" and "insu" also get mixed up with nearby pairs, the highest-scored neighbour is "iec vs inch". 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 #181,798 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.