Which to use
“casas” is a verb and “cosa” is a noun - they look or sound alike but fill different roles in a sentence.
- #41,694
- “casas” frequency rank
- #46,679
- “cosa” frequency rank
- 88373
- confusion score
Side-by-Side Comparison
| Feature | casas | cosa |
|---|---|---|
| Definition | Deuxième personne du singulier du passé simple du verbe caser. | Variante du IXᵉ siècle de chose. |
Where the eye mixes casas and cosa
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. casas runs 5 letters (CVCVC) against cosa's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: casas vs cosa
These two trip readers on the page rather than in the ear: casas is \ka.za\ while cosa is \ˈkɔza ~ˈkɔzə\. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 88373, derived from the frequency rank of both members and their visual similarity.
casas is recorded at frequency rank #41,694, classified as averb, pronounced \ka.za\. cosa is at rank #46,679, tagged as anoun, pronounced \ˈkɔza ~ˈkɔzə\.
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 88373, this pair ranks #7,081 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of casas vs cosa
Shared letters: acs. Private to "casas": -. Private to "cosa": o.
"casas" · 5 letters · shape CVCVC · "cosa" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Do "casas" and "cosa" mean the same thing in a sentence?
Which is more common, "casas" or "cosa"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "casas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cosa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #7,081 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "casas" and "cosa" also get mixed up with nearby pairs, the highest-scored neighbour is "cosa vs coupa". 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 #7,081 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.