raiavsrégiaWhat's the difference?

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

Which to use

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

#23,104
“raia” frequency rank
#25,815
“régia” frequency rank
48919
confusion score

Side-by-Side Comparison

Feature raia régia
Definition o mesmo que arraia feminino de régio

Letter map: raia vs régia

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

4 ch
raia
5 ch
régia

Role in the sentence - raia and régia

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: raia is anoun and régiaanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48919, derived from the frequency rank of both members and their visual similarity.

raia is recorded at frequency rank #23,104, classified as anoun, pronounced /ˈRaj.ɐ/. régia is at rank #25,815, 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 48919, this pair ranks #16,196 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of raia vs régia

Shared letters: air. Private to "raia": -. Private to "régia": gé.

"raia" · 4 letters · shape CVVV  ·  "régia" · 5 letters · shape CVCVV

Known mistypes of this pair

  • raia ← aria · raai · riaa · rraia

Frequently Asked Questions

Do "raia" and "régia" mean the same thing in a sentence?
No - they are not even the same part of speech. "raia" is a noun and "régia" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "raia" or "régia" show up more?
"raia" is the more common of the two: it sits at frequency rank #23,104 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

Pair "raia" vs "régia" is on the table, pick a follow-up below.

  • Full dictionary entry for "raia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "régia" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #16,196 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "raia" and "régia" also get mixed up with nearby pairs, the highest-scored neighbour is "rabi vs raia". 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 #16,196 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