duavsdutyTell them apart

Quick tell: dua is a verb, duty is a noun, so they fill different roles in a sentence.

Which to use

“dua” is a verb and “duty” is a noun - they look or sound alike but fill different roles in a sentence.

#39,112
“dua” frequency rank
#24,304
“duty” frequency rank
63416
confusion score

Side-by-Side Comparison

Feature dua duty
Definition querer dever; obrigação

Where the eye mixes dua and duty

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. dua runs 3 letters (CVV) against duty's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

3 ch
dua
4 ch
duty

Visual trap between dua and duty

These two trip readers on the page rather than in the ear: dua is /ˈdwa/ while duty is /ˈdjuːti/ (UK); /duːti/ (US). Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 63416, derived from the frequency rank of both members and their visual similarity.

dua is recorded at frequency rank #39,112, classified as averb, pronounced /ˈdwa/. duty is at rank #24,304, tagged as anoun, pronounced /ˈdjuːti/ (UK); /duːti/ (US).

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 63416, this pair ranks #6,198 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of dua vs duty

Shared letters: du. Private to "dua": a. Private to "duty": ty.

"dua" · 3 letters · shape CVV  ·  "duty" · 4 letters · shape CVCV

Known mistypes of this pair

  • duty ← dduty · dtuy · dutty · dutyy · duyt · udty

Frequently Asked Questions

Is swapping "dua" for "duty" ever safe?
No - they are not even the same part of speech. "dua" is a verb and "duty" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "dua" or "duty" show up more?
"duty" is the more common of the two: it sits at frequency rank #24,304 in our Portuguese list, against #39,112 for "dua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "dua" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duty" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #6,198 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "dua" and "duty" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs dua". 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 #6,198 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