registarvsregistrarWhich spelling fits?

Which to use

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

#16,154
“registar” frequency rank
#5,787
“registrar” frequency rank
21941
confusion score

Side-by-Side Comparison

Feature registar registrar
Definition anotar fatos por escrito; efetuar lançamentos em livros públicos anotar fatos por escrito; efetuar lançamentos em livros públicos

Where the eye mixes registar and registrar

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. registar runs 8 letters (CVCVCCVC) against registrar's 9 (CVCVCCCVC) - the length gap alone is often enough to separate them once you know to check it.

8 ch
registar
9 ch
registrar

Visual trap between registar and registrar

A purely visual mix-up. registar (/Rɨ.ʒiʃ.ˈtaɾ/) and registrar (/xe.ʒis.ˈtɾax/ ou /xe.ʒiʃ.ˈtɾax/) 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 21941, derived from the frequency rank of both members and their visual similarity.

registar is recorded at frequency rank #16,154, classified as averb, pronounced /Rɨ.ʒiʃ.ˈtaɾ/. registrar is at rank #5,787, tagged as averb, pronounced /xe.ʒis.ˈtɾax/ ou /xe.ʒiʃ.ˈtɾax/.

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 21941, this pair ranks #48,209 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of registar vs registrar

Shared letters: aegirst. Private to "registar": -. Private to "registrar": -.

"registar" · 8 letters · shape CVCVCCVC  ·  "registrar" · 9 letters · shape CVCVCCCVC

Known mistypes of this pair

  • registar ← ergistar · reggistar · regisatr · regisstar · registra · registtar · regitsar · regsitar
  • registrar ← ergistrar · reggistrar · regisrtar · regisstrar · registarr · registrarr · registrra · registrrar

Frequently Asked Questions

Can "registar" and "registrar" be used interchangeably?
No. They are said differently (/Rɨ.ʒiʃ.ˈtaɾ/ versus /xe.ʒis.ˈtɾax/ ou /xe.ʒiʃ.ˈtɾax/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "registar" vs "registrar" - which ranks higher?
"registrar" is the more common of the two: it sits at frequency rank #5,787 in our Portuguese list, against #16,154 for "registar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "registar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "registrar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #48,209 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "registar" and "registrar" also get mixed up with nearby pairs, the highest-scored neighbour is "recitar vs registar". 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 #48,209 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