duasvsduroWhat's the difference?

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

Which to use

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

#188
“duas” frequency rank
#3,070
“duro” frequency rank
3258
confusion score

Side-by-Side Comparison

Feature duas duro
Definition feminino de dois/dous; representado pelo símbolo 2 (algarismos indo-arábicos) ou II (algarismos romanos) difícil de quebrar ou de desfazer

Letter map: duas vs duro

Shared letters muted; letters that set duas and duro apart highlighted. Shared run: 2.

4 ch
duas
4 ch
duro

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: duas is anum and duroanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 3258, derived from the frequency rank of both members and their visual similarity.

duas is recorded at frequency rank #188, classified as anum, pronounced /ˈdu.ɐʃ/. 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 3258, this pair ranks #71,913 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of duas vs duro

Shared letters: du. Private to "duas": as. Private to "duro": or.

"duas" · 4 letters · shape CVVC  ·  "duro" · 4 letters · shape CVCV

Known mistypes of this pair

  • duasdaus · dduas · duass · dusa · udas
  • durodduro · druo · duor · durro · udro

Frequently Asked Questions

Can "duas" and "duro" be used interchangeably?
No - they are not even the same part of speech. "duas" is a num and "duro" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "duas" or "duro"?
"duas" is the more common of the two: it sits at frequency rank #188 in our Portuguese list, against #3,070 for "duro". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list