Which to use
“aero” and “arc” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,308
- “aero” frequency rank
- #3,180
- “arc” frequency rank
- 51488
- confusion score
Side-by-Side Comparison
| Feature | aero | arc |
|---|---|---|
| Definition | Air (mélange gazeux). | Arme de trait servant à lancer des flèches, formée d’une branche de bois ou d’une verge, soit de métal, soit d’autre matière, courbée avec effort au moyen d’une corde qui s’attache aux deux extrémités. |
Where the eye mixes aero and arc
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses aero with arc
A purely visual mix-up. aero (\a.ˈe.ro\) and arc (\aʁk\) 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 51488, derived from the frequency rank of both members and their visual similarity.
aero is recorded at frequency rank #48,308, classified as anoun, pronounced \a.ˈe.ro\. arc is at rank #3,180, tagged as anoun, pronounced \aʁk\.
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 51488, this pair ranks #154,605 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aero vs arc
Shared letters: ar. Private to "aero": eo. Private to "arc": c.
"aero" · 4 letters · shape VVCV · "arc" · 3 letters · shape VCC
Known mistypes of this pair
- aero ← aeor · aerro · areo · earo
Frequently Asked Questions
Is swapping "aero" for "arc" ever safe?
Frequency check: "aero" vs "arc" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "aero" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "arc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #154,605 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "aero" and "arc" also get mixed up with nearby pairs, the highest-scored neighbour is "aero vs avéra". 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 #154,605 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.