docavsduckWhat's the difference?

Which to use

“doca” and “duck” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#23,985
“doca” frequency rank
#23,302
“duck” frequency rank
47287
confusion score

Side-by-Side Comparison

Feature doca duck
Definition parte abrigada de um porto, dispondo de cais acostável, onde se podem recolher embarcações para fugir do mau tempo ou para carregar e descarregar mercadorias pato

Letter map: doca vs duck

Shared letters muted; letters that set doca and duck apart highlighted. Shared run: 2.

4 ch
doca
4 ch
duck

Pair insight - doca / duck

doca and duck are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47287, derived from the frequency rank of both members and their visual similarity.

doca is recorded at frequency rank #23,985, classified as anoun, pronounced /ˈdɔ.kɐ/. duck is at rank #23,302, tagged as anoun.

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 47287, this pair ranks #17,968 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of doca vs duck

Shared letters: cd. Private to "doca": ao. Private to "duck": ku.

"doca" · 4 letters · shape CVCV  ·  "duck" · 4 letters · shape CVCC

Known mistypes of this pair

  • docadcoa · ddoca · doac · docca · odca
  • duckdcuk · dduck · ducck · duckk · dukc · udck

Frequently Asked Questions

Is swapping "doca" for "duck" ever safe?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "doca" vs "duck" - which ranks higher?
"duck" is the more common of the two: it sits at frequency rank #23,302 in our Portuguese list, against #23,985 for "doca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "doca" vs "duck" is on the table, pick a follow-up below.

  • Full dictionary entry for "doca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duck" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #17,968 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "doca" and "duck" also get mixed up with nearby pairs, the highest-scored neighbour is "doca vs doula". 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 #17,968 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