aptvsapudWhich spelling fits?

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

Which to use

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

#41,338
“apt” frequency rank
#40,428
“apud” frequency rank
81766
confusion score

Side-by-Side Comparison

Feature apt apud
Definition apto palavra latina usada para citações indiretas (citar documentos que não foram obtidos diretamente, mas por meio de outras obras)

Letter map: apt vs apud

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

3 ch
apt
4 ch
apud

Role in the sentence - apt and apud

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: apt is anadjective and apudapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 81766, derived from the frequency rank of both members and their visual similarity.

apt is recorded at frequency rank #41,338, classified as anadj, pronounced /æpt/. apud is at rank #40,428, tagged as aprep.

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 81766, this pair ranks #1,116 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of apt vs apud

Shared letters: ap. Private to "apt": t. Private to "apud": du.

"apt" · 3 letters · shape VCC  ·  "apud" · 4 letters · shape VCVC

Known mistypes of this pair

  • apudapdu · appud · apudd · aupd · paud

Frequently Asked Questions

Is swapping "apt" for "apud" ever safe?
No - they are not even the same part of speech. "apt" is an adjective and "apud" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "apt" or "apud"?
"apud" is the more common of the two: it sits at frequency rank #40,428 in our Portuguese list, against #41,338 for "apt". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "apt" vs "apud" is on the table, pick a follow-up below.

  • Full dictionary entry for "apt" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apud" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,116 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "apt" and "apud" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs apt". 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 #1,116 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