Which to use
“cosa” and “cost” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #46,679
- “cosa” frequency rank
- #14,234
- “cost” frequency rank
- 60913
- confusion score
Side-by-Side Comparison
| Feature | cosa | cost |
|---|---|---|
| Definition | Variante du IXᵉ siècle de chose. | Coût. |
Where the eye mixes cosa and cost
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. cosa (CVCV) and cost (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses cosa with cost
A purely visual mix-up. cosa (\ˈkɔza ~ˈkɔzə\) and cost (\kɒst\) 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 “cosa” becomes t in “cost”. Our composite confusion score for this pair is 60913, derived from the frequency rank of both members and their visual similarity.
cosa is recorded at frequency rank #46,679, classified as anoun, pronounced \ˈkɔza ~ˈkɔzə\. cost is at rank #14,234, tagged as anoun, pronounced \kɒst\.
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 60913, this pair ranks #95,128 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of cosa vs cost
Shared letters: cos. Private to "cosa": a. Private to "cost": t.
"cosa" · 4 letters · shape CVCV · "cost" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Can "cosa" and "cost" be used interchangeably?
Which is more common, "cosa" or "cost"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "cosa" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cost" - compare definitions side by side with the headword page. Word entry
- This pair ranks #95,128 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "cosa" and "cost" 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 #95,128 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.