apudvsatumConfusable pair

Quick tell: apud is a preposition, atum is a noun, so they fill different roles in a sentence.

Which to use

“apud” is a preposition and “atum” is a noun - they look or sound alike but fill different roles in a sentence.

#40,428
“apud” frequency rank
#16,684
“atum” frequency rank
57112
confusion score

Side-by-Side Comparison

Feature apud atum
Definition palavra latina usada para citações indiretas (citar documentos que não foram obtidos diretamente, mas por meio de outras obras) peixe da família dos Escombrídeos muito usado na alimentação quer em fresco, quer em conserva

Letter map: apud vs atum

Shared letters muted; letters that set apud and atum apart highlighted. Shared run: 2.

4 ch
apud
4 ch
atum

Grammar separator: apud vs atum

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: apud is apreposition and atumanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 57112, derived from the frequency rank of both members and their visual similarity.

apud is recorded at frequency rank #40,428, classified as aprep. atum is at rank #16,684, tagged as anoun, pronounced /ɐ.ˈtũ/.

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 57112, this pair ranks #9,533 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of apud vs atum

Shared letters: au. Private to "apud": dp. Private to "atum": mt.

"apud" · 4 letters · shape VCVC  ·  "atum" · 4 letters · shape VCVC

Known mistypes of this pair

  • apudapdu · appud · apudd · aupd · paud
  • atumatmu · attum · atumm · autm · taum

Frequently Asked Questions

Can "apud" and "atum" be used interchangeably?
No - they are not even the same part of speech. "apud" is a preposition and "atum" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "apud" vs "atum" - which ranks higher?
"atum" is the more common of the two: it sits at frequency rank #16,684 in our Portuguese list, against #40,428 for "apud". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "apud" and "atum". Here's where to go from here.

  • Full dictionary entry for "apud" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "atum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #9,533 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "apud" and "atum" also get mixed up with nearby pairs, the highest-scored neighbour is "apo vs apud". 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 #9,533 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list