allavsarcaWhich spelling fits?

Quick tell: alla is a verb, arca is a noun, so they fill different roles in a sentence.

Which to use

“alla” is a verb and “arca” is a noun - they look or sound alike but fill different roles in a sentence.

#6,977
“alla” frequency rank
#12,304
“arca” frequency rank
19281
confusion score

Side-by-Side Comparison

Feature alla arca
Definition Tercera persona del singular (il, elle, on) del pretérito perfecto simple de indicativo de aller 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.

Where the eye mixes alla and arca

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

4 ch
alla
4 ch
arca

Look-alike desk: alla vs arca

These two trip readers on the page rather than in the ear: alla is /a.la/ while arca is [ˈaɾka]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 19281, derived from the frequency rank of both members and their visual similarity.

alla is recorded at frequency rank #6,977, classified as averb, pronounced /a.la/. arca is at rank #12,304, tagged as anoun, pronounced [ˈaɾka].

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 19281, this pair ranks #264,427 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of alla vs arca

Shared letters: a. Private to "alla": l. Private to "arca": cr.

"alla" · 4 letters · shape VCCV  ·  "arca" · 4 letters · shape VCCV

Known mistypes of this pair

  • allaalal
  • arcaarac · arcca · arrca · raca

Frequently Asked Questions

Can "alla" and "arca" be used interchangeably?
No - they are not even the same part of speech. "alla" is a verb and "arca" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "alla" vs "arca" - which ranks higher?
"alla" is the more common of the two: it sits at frequency rank #6,977 in our Spanish list, against #12,304 for "arca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "alla" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arca" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #264,427 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "alla" and "arca" also get mixed up with nearby pairs, the highest-scored neighbour is "anta vs arca". 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 #264,427 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