Which to use
“arch” and “aru” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #25,204
- “arch” frequency rank
- #48,924
- “aru” frequency rank
- 74128
- confusion score
Side-by-Side Comparison
| Feature | arch | aru |
|---|---|---|
| Definition | Dans les pays arabes, terre en usufruit collectif chez les peuples Berbères. | Vagin. |
Where the eye mixes arch and aru
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses arch with aru
A purely visual mix-up. arch (\aʁʃ\) and aru (\aru\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 74128, derived from the frequency rank of both members and their visual similarity.
arch is recorded at frequency rank #25,204, classified as anoun, pronounced \aʁʃ\. aru is at rank #48,924, tagged as anoun, pronounced \aru\.
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 74128, this pair ranks #38,167 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of arch vs aru
Shared letters: ar. Private to "arch": ch. Private to "aru": u.
"arch" · 4 letters · shape VCCC · "aru" · 3 letters · shape VCV
Known mistypes of this pair
- arch ← acrh · arcch · archh · arhc · arrch · rach
Frequently Asked Questions
Is swapping "arch" for "aru" ever safe?
In ordinary French text, does "arch" or "aru" show up more?
After this comparison
Eye-level mix-up between "arch" and "aru" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "arch" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aru" - compare definitions side by side with the headword page. Word entry
- This pair ranks #38,167 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "arch" and "aru" also get mixed up with nearby pairs, the highest-scored neighbour is "aru vs aur". 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 #38,167 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.