regiãovsréguaWhat's the difference?

Which to use

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

#289
“região” frequency rank
#18,702
“régua” frequency rank
18991
confusion score

Side-by-Side Comparison

Feature região régua
Definition território, área instrumento de madeira, plástico ou qualquer outro material sólido com as faces planas e as arestas apropriadas para servirem de guia para se traçar linhas retas

Where the eye mixes região and régua

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. região runs 6 letters (CVCVVV) against régua's 5 (CVCVV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
região
5 ch
régua

Visual trap between região and régua

A purely visual mix-up. região (/ʁe.ʒi.ˈãw/) and régua (/ˈχɛ.gwə/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 18991, derived from the frequency rank of both members and their visual similarity.

região is recorded at frequency rank #289, classified as anoun, pronounced /ʁe.ʒi.ˈãw/. régua is at rank #18,702, tagged as anoun, pronounced /ˈχɛ.gwə/.

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 18991, this pair ranks #51,877 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of região vs régua

Shared letters: gr. Private to "região": eioã. Private to "régua": aué.

"região" · 6 letters · shape CVCVVV  ·  "régua" · 5 letters · shape CVCVV

Frequently Asked Questions

Do "região" and "régua" mean the same thing in a sentence?
No. They are said differently (/ʁe.ʒi.ˈãw/ versus /ˈχɛ.gwə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "região" vs "régua" - which ranks higher?
"região" is the more common of the two: it sits at frequency rank #289 in our Portuguese list, against #18,702 for "régua". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "região" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "régua" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #51,877 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "região" and "régua" also get mixed up with nearby pairs, the highest-scored neighbour is "reger vs régua". Nearby pair

Confusion rank #51,877 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