Which to use
“API” and “ATP” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #18,115
- “API” frequency rank
- #13,735
- “ATP” frequency rank
- 31850
- confusion score
Side-by-Side Comparison
| Feature | API | ATP |
|---|---|---|
| Definition | Alphabet phonétique international. | 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. |
Where the eye mixes API and ATP
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses API with ATP
A purely visual mix-up. API (\a.pi\) and ATP (\a.te.pe\) 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 31850, derived from the frequency rank of both members and their visual similarity.
API is recorded at frequency rank #18,115, classified as anoun, pronounced \a.pi\. ATP is at rank #13,735, tagged as anoun, pronounced \a.te.pe\.
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 31850, this pair ranks #301,153 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of API vs ATP
Shared letters: ap. Private to "API": i. Private to "ATP": t.
"API" · 3 letters · shape VCV · "ATP" · 3 letters · shape VCC
Frequently Asked Questions
Do "API" and "ATP" mean the same thing in a sentence?
In ordinary French text, does "API" or "ATP" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "API" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ATP" - compare definitions side by side with the headword page. Word entry
- This pair ranks #301,153 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "API" and "ATP" also get mixed up with nearby pairs, the highest-scored neighbour is "API vs aur". Nearby pair
Confusion rank #301,153 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.