Which to use
“apu” is a noun and “auf” is a preposition - they look or sound alike but fill different roles in a sentence.
- #48,918
- “apu” frequency rank
- #25,894
- “auf” frequency rank
- 74812
- confusion score
Side-by-Side Comparison
| Feature | apu | auf |
|---|---|---|
| Definition | Banquise. | Sur, avec notion d'immobilité. |
Where the eye mixes apu and auf
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: apu vs auf
These two trip readers on the page rather than in the ear: apu is \a.pu\ while auf is \aʊ̯f\. 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 74812, derived from the frequency rank of both members and their visual similarity.
apu is recorded at frequency rank #48,918, classified as anoun, pronounced \a.pu\. auf is at rank #25,894, tagged as aprep, pronounced \aʊ̯f\.
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 74812, this pair ranks #35,939 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of apu vs auf
Shared letters: au. Private to "apu": p. Private to "auf": f.
"apu" · 3 letters · shape VCV · "auf" · 3 letters · shape VVC
Frequently Asked Questions
Can "apu" and "auf" be used interchangeably?
Which is more common, "apu" or "auf"?
After this comparison
Eye-level mix-up between "apu" and "auf" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "apu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "auf" - compare definitions side by side with the headword page. Word entry
- This pair ranks #35,939 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "apu" and "auf" also get mixed up with nearby pairs, the highest-scored neighbour is "apu vs aur". Nearby pair
Confusion rank #35,939 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.