Which to use
“ATP” is a noun and “aus” is a preposition - they look or sound alike but fill different roles in a sentence.
- #13,735
- “ATP” frequency rank
- #18,401
- “aus” frequency rank
- 32136
- confusion score
Side-by-Side Comparison
| Feature | ATP | aus |
|---|---|---|
| Definition | Adénosine triphosphate, molécule produite lors de la phosphorylation de l’adénosine diphosphate (ADP) et dont l’hydrolyse est une source d’énergie pour de nombreuses réactions cellulaires. | De (désigne la provenance). |
Where the eye mixes ATP and aus
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses ATP with aus
These two trip readers on the page rather than in the ear: ATP is \a.te.pe\ while aus is \aʊ̯s\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 32136, derived from the frequency rank of both members and their visual similarity.
ATP is recorded at frequency rank #13,735, classified as anoun, pronounced \a.te.pe\. aus is at rank #18,401, tagged as aprep, pronounced \aʊ̯s\.
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 32136, this pair ranks #299,308 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ATP vs aus
Shared letters: a. Private to "ATP": pt. Private to "aus": su.
"ATP" · 3 letters · shape VCC · "aus" · 3 letters · shape VVC
Frequently Asked Questions
Is swapping "ATP" for "aus" ever safe?
In ordinary French text, does "ATP" or "aus" show up more?
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 "ATP" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #299,308 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ATP" and "aus" also get mixed up with nearby pairs, the highest-scored neighbour is "aus vs aves". Nearby pair
Confusion rank #299,308 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.