arcadavsarrudaWhich spelling fits?

Which to use

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

#36,747
“arcada” frequency rank
#8,423
“arruda” frequency rank
45170
confusion score

Side-by-Side Comparison

Feature arcada arruda
Definition abóbada arqueada planta lenhosa da família das Rutáceas de cheiro ativo e de folhas amargas, utilizada para aplicações medicinais e atos de crendice; seu nome científico é Ruta chalepensis L.

Where the eye mixes arcada and arruda

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
arcada
6 ch
arruda

Visual trap between arcada and arruda

A purely visual mix-up. arcada (/ɐɾ.ˈka.dɐ/) and arruda (/ɐ.ˈRu.dɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 45170, derived from the frequency rank of both members and their visual similarity.

arcada is recorded at frequency rank #36,747, classified as anoun, pronounced /ɐɾ.ˈka.dɐ/. arruda is at rank #8,423, tagged as anoun, pronounced /ɐ.ˈRu.dɐ/.

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 45170, this pair ranks #20,246 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of arcada vs arruda

Shared letters: adr. Private to "arcada": c. Private to "arruda": u.

"arcada" · 6 letters · shape VCCVCV  ·  "arruda" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • arcadaacrada · aracda · arcaad · arcadda · arccada · arcdaa · arrcada · racada
  • arrudaarrdua · arruad · arrudda · aruda · arurda · raruda

Frequently Asked Questions

Is swapping "arcada" for "arruda" ever safe?
No. They are said differently (/ɐɾ.ˈka.dɐ/ versus /ɐ.ˈRu.dɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "arcada" or "arruda" show up more?
"arruda" is the more common of the two: it sits at frequency rank #8,423 in our Portuguese list, against #36,747 for "arcada". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "arcada" and "arruda" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "arcada" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arruda" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,246 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "arcada" and "arruda" also get mixed up with nearby pairs, the highest-scored neighbour is "arcada vs arraia". 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 #20,246 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