Which to use
“casas” and “casos” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,052
- “casas” frequency rank
- #466
- “casos” frequency rank
- 1518
- confusion score
Side-by-Side Comparison
| Feature | casas | casos |
|---|---|---|
| Definition | Edificio para habitar. | Forma del plural de caso. |
Where the eye mixes casas and casos
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: casas vs casos
A purely visual mix-up. casas ([ˈkasas]) and casos ([ˈkasos]) 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 a single letter - a in “casas” becomes o in “casos”. Our composite confusion score for this pair is 1518, derived from the frequency rank of both members and their visual similarity.
casas is recorded at frequency rank #1,052, classified as anoun, pronounced [ˈkasas]. casos is at rank #466, tagged as anoun, pronounced [ˈkasos].
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 1518, this pair ranks #321,924 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of casas vs casos
Shared letters: acs. Private to "casas": -. Private to "casos": o.
"casas" · 5 letters · shape CVCVC · "casos" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "casas" and "casos" be used interchangeably?
In ordinary Spanish text, does "casas" or "casos" show up more?
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 "casas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "casos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #321,924 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "casas" and "casos" also get mixed up with nearby pairs, the highest-scored neighbour is "casará vs casas". 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 #321,924 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.