Which to use
“acre” and “aero” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #28,433
- “acre” frequency rank
- #48,308
- “aero” frequency rank
- 76741
- confusion score
Side-by-Side Comparison
| Feature | acre | aero |
|---|---|---|
| Definition | Unité de surface égale à 0,4 hectare ou à 4046,9 mètres carrés, encore utilisée en agriculture et dans divers pays avec des valeurs différentes. | Air (mélange gazeux). |
Where the eye mixes acre and aero
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. acre (VCCV) and aero (VVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: acre vs aero
A purely visual mix-up. acre (\akʁ\) and aero (\a.ˈe.ro\) 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 76741, derived from the frequency rank of both members and their visual similarity.
acre is recorded at frequency rank #28,433, classified as anoun, pronounced \akʁ\. aero is at rank #48,308, tagged as anoun, pronounced \a.ˈe.ro\.
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 76741, this pair ranks #30,285 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of acre vs aero
Shared letters: aer. Private to "acre": c. Private to "aero": o.
"acre" · 4 letters · shape VCCV · "aero" · 4 letters · shape VVCV
Known mistypes of this pair
Frequently Asked Questions
Can "acre" and "aero" be used interchangeably?
Which is more common, "acre" or "aero"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "acre" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aero" - compare definitions side by side with the headword page. Word entry
- This pair ranks #30,285 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "acre" and "aero" 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 #30,285 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.