régiavsréguaWhat's the difference?

Quick tell: régia is a adjective, régua is a noun, so they fill different roles in a sentence.

Which to use

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

#25,815
“régia” frequency rank
#18,702
“régua” frequency rank
44517
confusion score

Side-by-Side Comparison

Feature régia régua
Definition feminino de régio 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

Letter map: régia vs régua

Shared letters muted; letters that set régia and régua apart highlighted. Shared run: 4. régia and régua follow the identical consonant-vowel pattern (CVCVV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
régia
5 ch
régua

Part-of-speech tell for régia / régua

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: régia is anadjective and réguaanoun. On the page they differ by a single letter - i in “régia” becomes u in “régua”. Our composite confusion score for this pair is 44517, derived from the frequency rank of both members and their visual similarity.

régia is recorded at frequency rank #25,815, classified as anadj. 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 44517, this pair ranks #20,951 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of régia vs régua

Shared letters: agré. Private to "régia": i. Private to "régua": u.

"régia" · 5 letters · shape CVCVV  ·  "régua" · 5 letters · shape CVCVV

Frequently Asked Questions

Do "régia" and "régua" mean the same thing in a sentence?
No - they are not even the same part of speech. "régia" is an adjective and "régua" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "régia" vs "régua" - which ranks higher?
"régua" is the more common of the two: it sits at frequency rank #18,702 in our Portuguese list, against #25,815 for "régia". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "régia" and "régua".

  • Full dictionary entry for "régia" 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 #20,951 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "régia" and "régua" also get mixed up with nearby pairs, the highest-scored neighbour is "régia vs revi". Nearby pair

Confusion rank #20,951 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