Which to use
“apud” is a preposition and “auf” is an adverb - they look or sound alike but fill different roles in a sentence.
- #40,428
- “apud” frequency rank
- #42,318
- “auf” frequency rank
- 82746
- confusion score
Side-by-Side Comparison
| Feature | apud | auf |
|---|---|---|
| Definition | palavra latina usada para citações indiretas (citar documentos que não foram obtidos diretamente, mas por meio de outras obras) | aberto |
Letter map: apud vs auf
Shared letters muted; letters that set apud and auf apart highlighted. Shared run: 2. apud runs 4 letters (VCVC) against auf's 3 (VVC) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: apud vs auf
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: apud is apreposition and aufanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 82746, derived from the frequency rank of both members and their visual similarity.
apud is recorded at frequency rank #40,428, classified as aprep. auf is at rank #42,318, tagged as anadv, 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 82746, this pair ranks #991 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of apud vs auf
Shared letters: au. Private to "apud": dp. Private to "auf": f.
"apud" · 4 letters · shape VCVC · "auf" · 3 letters · shape VVC
Known mistypes of this pair
- apud ← apdu · appud · apudd · aupd · paud
Frequently Asked Questions
Do "apud" and "auf" mean the same thing in a sentence?
Which is more common, "apud" or "auf"?
Useful next steps
Done with this confusable. These links stay specific to "apud" and "auf".
- Full dictionary entry for "apud" 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 #991 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "apud" and "auf" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs auf". 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 #991 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.