Which to use
“ath” is an article and “auch” is an adverb - they look or sound alike but fill different roles in a sentence.
- #31,830
- “ath” frequency rank
- #23,455
- “auch” frequency rank
- 55285
- confusion score
Side-by-Side Comparison
| Feature | ath | auch |
|---|---|---|
| Definition | Contraction de la préposition a et de l'article défini eth. | Aussi, également. |
Where the eye mixes ath and auch
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: ath vs auch
These two trip readers on the page rather than in the ear: ath is \at\ while auch is \aʊ̯x\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (article vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 55285, derived from the frequency rank of both members and their visual similarity.
ath is recorded at frequency rank #31,830, classified as anarticle, pronounced \at\. auch is at rank #23,455, tagged as anadv, pronounced \aʊ̯x\.
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 55285, this pair ranks #128,420 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ath vs auch
Shared letters: ah. Private to "ath": t. Private to "auch": cu.
"ath" · 3 letters · shape VCC · "auch" · 4 letters · shape VVCC
Known mistypes of this pair
- auch ← acuh · aucch · auchh · auhc · uach
Frequently Asked Questions
Can "ath" and "auch" be used interchangeably?
Which is more common, "ath" or "auch"?
What to do next
Eye-level mix-up between "ath" and "auch" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ath" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "auch" - compare definitions side by side with the headword page. Word entry
- This pair ranks #128,420 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ath" and "auch" also get mixed up with nearby pairs, the highest-scored neighbour is "ath 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 #128,420 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.