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 spellings diverge
Shared letters are muted; the letters that actually set casas and cosa apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
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
Frequency comparison
Frequently Asked Questions
Can "casas" and "cosa" be used interchangeably?
Which is more common, "casas" or "cosa"?
Remembering casas vs cosa
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “casas”; for a noun, it's “cosa”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “casas” entry
- Browse more pairs most likely to be confused. Most confusable