duplovsduroWhat's the difference?

Which to use

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

#4,388
“duplo” frequency rank
#3,070
“duro” frequency rank
7458
confusion score

Side-by-Side Comparison

Feature duplo duro
Definition que tem duplicidade; ambíguo difícil de quebrar ou de desfazer

Letter map: duplo vs duro

Shared letters muted; letters that set duplo and duro apart highlighted. Shared run: 3. duplo runs 5 letters (CVCCV) against duro's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
duplo
4 ch
duro

Spelling & dictionary notes on duplo vs duro

duplo and duro 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 differ by 1 letter(s) in length. Our composite confusion score for this pair is 7458, derived from the frequency rank of both members and their visual similarity.

duplo is recorded at frequency rank #4,388, classified as anadj. duro is at rank #3,070, tagged as anadj.

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 7458, this pair ranks #66,671 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of duplo vs duro

Shared letters: dou. Private to "duplo": lp. Private to "duro": r.

"duplo" · 5 letters · shape CVCCV  ·  "duro" · 4 letters · shape CVCV

Known mistypes of this pair

  • duplo ← dduplo · dpulo · dulpo · dupllo · dupol · dupplo · udplo
  • duro ← dduro · druo · duor · durro · udro

Frequently Asked Questions

Can "duplo" and "duro" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary Portuguese text, does "duplo" or "duro" show up more?
"duro" is the more common of the two: it sits at frequency rank #3,070 in our Portuguese list, against #4,388 for "duplo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "duplo" and "duro". Here's where to go from here.

  • Full dictionary entry for "duplo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #66,671 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "duplo" and "duro" also get mixed up with nearby pairs, the highest-scored neighbour is "damo vs duro". 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 #66,671 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