Which to use
“acier” and “aubier” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,974
- “acier” frequency rank
- #41,133
- “aubier” frequency rank
- 45107
- confusion score
Side-by-Side Comparison
| Feature | acier | aubier |
|---|---|---|
| Definition | Alliage de fer et de carbone, dont la proportion de celui-ci ne dépasse pas 2 %, susceptible d’acquérir, par certains procédés, un grand degré de dureté. | Partie de bois d’arbre tendre et claire qui est entre l’écorce et le duramen. |
Where the eye mixes acier and aubier
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. acier runs 5 letters (VCVVC) against aubier's 6 (VVCVVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses acier with aubier
A purely visual mix-up. acier (\a.sje\) and aubier (\o.bje\) 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 45107, derived from the frequency rank of both members and their visual similarity.
acier is recorded at frequency rank #3,974, classified as anoun, pronounced \a.sje\. aubier is at rank #41,133, tagged as anoun, pronounced \o.bje\.
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 45107, this pair ranks #205,346 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of acier vs aubier
Shared letters: aeir. Private to "acier": c. Private to "aubier": bu.
"acier" · 5 letters · shape VCVVC · "aubier" · 6 letters · shape VVCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "acier" and "aubier" be used interchangeably?
Frequency check: "acier" vs "aubier" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "acier" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aubier" - compare definitions side by side with the headword page. Word entry
- This pair ranks #205,346 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "acier" and "aubier" also get mixed up with nearby pairs, the highest-scored neighbour is "aubier vs Augier". 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 #205,346 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.