duovsduroWhat's the difference?

Quick tell: duo is a noun, duro is an adjective, so they fill different roles in a sentence.

Which to use

“duo” is a noun and “duro” is an adjective - they look or sound alike but fill different roles in a sentence.

#15,317
“duo” frequency rank
#3,070
“duro” frequency rank
18387
confusion score

Side-by-Side Comparison

Feature duo duro
Definition grupo de duas pessoas que atuam conjuntamente difícil de quebrar ou de desfazer

Letter map: duo vs duro

Shared letters muted; letters that set duo and duro apart highlighted. Shared run: 3.

3 ch
duo
4 ch
duro

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: duo is anoun and duroanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 18387, derived from the frequency rank of both members and their visual similarity.

duo is recorded at frequency rank #15,317, classified as anoun, pronounced [du.o], Plural: [du.os]. 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 18387, this pair ranks #52,605 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of duo vs duro

Shared letters: dou. Private to "duo": -. Private to "duro": r.

"duo" · 3 letters · shape CVV  ·  "duro" · 4 letters · shape CVCV

Known mistypes of this pair

  • durodduro · druo · duor · durro · udro

Frequently Asked Questions

Can "duo" and "duro" be used interchangeably?
No - they are not even the same part of speech. "duo" is a noun and "duro" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "duo" or "duro"?
"duro" is the more common of the two: it sits at frequency rank #3,070 in our Portuguese list, against #15,317 for "duo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list