arcavsariTell them apart

Which to use

“arca” and “ari” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,304
“arca” frequency rank
#18,154
“ari” frequency rank
30458
confusion score

Side-by-Side Comparison

Feature arca ari
Definition Caja que puede tener distintos tamaños, generalmente de madera, cuya tapa se asegura con bisagras por uno de sus lados y que suele cerrarse con cerradura y candado. Suele estar muy ornamentada y a veces reposa sobre un pequeño podium. (familia Ursidae) Oso.

Where the eye mixes arca and ari

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
arca
3 ch
ari

Why the eye confuses arca with ari

A purely visual mix-up. arca ([ˈaɾka]) and ari ([aˈɾi]) 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 30458, derived from the frequency rank of both members and their visual similarity.

arca is recorded at frequency rank #12,304, classified as anoun, pronounced [ˈaɾka]. ari is at rank #18,154, tagged as anoun, pronounced [aˈɾi].

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 30458, this pair ranks #211,870 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of arca vs ari

Shared letters: ar. Private to "arca": c. Private to "ari": i.

"arca" · 4 letters · shape VCCV  ·  "ari" · 3 letters · shape VCV

Known mistypes of this pair

  • arcaarac · arcca · arrca · raca

Frequently Asked Questions

Can "arca" and "ari" be used interchangeably?
No. They are said differently ([ˈaɾka] versus [aˈɾi]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "arca" or "ari" show up more?
"arca" is the more common of the two: it sits at frequency rank #12,304 in our Spanish list, against #18,154 for "ari". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "arca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ari" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #211,870 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "arca" and "ari" also get mixed up with nearby pairs, the highest-scored neighbour is "apis vs ari". 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 #211,870 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list