apudvsaufWhat's the difference?

Quick tell: apud is a preposition, auf is an adverb, so they fill different roles in a sentence.

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

Where the spellings diverge

Shared letters are muted; the letters that actually set apud and auf apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
apud
3 ch
auf

Spelling & Dictionary Insight

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

  • apudapdu · appud · apudd · aupd · paud

Frequency comparison

apud#40,428
auf#42,318

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "apud" and "auf" be used interchangeably?
No - they are not even the same part of speech. "apud" is a preposition and "auf" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "apud" or "auf"?
"apud" is the more common of the two: it sits at frequency rank #40,428 in our Portuguese list, against #42,318 for "auf". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering apud vs auf

The fastest way to pick the right one every time.

  • Check the role first: if you need a preposition, it's “apud”; for an adverb, it's “auf”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “apud” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list