Which to use
“arca” is a noun and “Arras” is a name - they look or sound alike but fill different roles in a sentence.
- #12,304
- “arca” frequency rank
- #47,564
- “Arras” frequency rank
- 59868
- confusion score
Side-by-Side Comparison
| Feature | arca | Arras |
|---|---|---|
| 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. | Apellido. |
Where the eye mixes arca and Arras
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. arca runs 4 letters (VCCV) against Arras's 5 (VCCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses arca with Arras
These two trip readers on the page rather than in the ear: arca is [ˈaɾka] while Arras is [ˈaras]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 59868, 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]. Arras is at rank #47,564, tagged as aname, pronounced [ˈaras].
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 59868, this pair ranks #61,045 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of arca vs Arras
Shared letters: ar. Private to "arca": c. Private to "Arras": s.
"arca" · 4 letters · shape VCCV · "Arras" · 5 letters · shape VCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "arca" for "Arras" ever safe?
Which is more common, "arca" or "Arras"?
Useful next steps
Eye-level mix-up between "arca" and "Arras" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "arca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Arras" - compare definitions side by side with the headword page. Word entry
- This pair ranks #61,045 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "arca" and "Arras" also get mixed up with nearby pairs, the highest-scored neighbour is "amarras vs Arras". 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 #61,045 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.