Which to use
“rego” and “régua” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #21,864
- “rego” frequency rank
- #18,702
- “régua” frequency rank
- 40566
- confusion score
Side-by-Side Comparison
| Feature | rego | régua |
|---|---|---|
| Definition | sulco que abre o arado | 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 rego and régua
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. rego runs 4 letters (CVCV) against régua's 5 (CVCVV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between rego and régua
A purely visual mix-up. rego (/ˈRe.ɡu/) 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 40566, derived from the frequency rank of both members and their visual similarity.
rego is recorded at frequency rank #21,864, classified as anoun, pronounced /ˈRe.ɡu/. 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 40566, this pair ranks #25,508 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rego vs régua
Shared letters: gr. Private to "rego": eo. Private to "régua": aué.
"rego" · 4 letters · shape CVCV · "régua" · 5 letters · shape CVCVV
Known mistypes of this pair
- rego ← ergo · reggo · reog · rgeo · rrego
Frequently Asked Questions
Do "rego" and "régua" mean the same thing in a sentence?
In ordinary Portuguese text, does "rego" or "régua" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "rego" 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 #25,508 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "rego" and "régua" also get mixed up with nearby pairs, the highest-scored neighbour is "rego vs revi". 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 #25,508 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.