Which to use
“coi” is an adjective and “cosy” is a noun - they look or sound alike but fill different roles in a sentence.
- #40,676
- “coi” frequency rank
- #41,722
- “cosy” frequency rank
- 82398
- confusion score
Side-by-Side Comparison
| Feature | coi | cosy |
|---|---|---|
| Definition | Qui est calme, tranquille. | Enveloppe fourrée, généralement en tissu ouatiné, dont on couvre une théière, un plat ou un œuf, pour en conserver la chaleur. |
Where the spellings diverge
Shared letters are muted; the letters that actually set coi and cosy apart are highlighted. They share 2 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: coi is \kwa\ while cosy is \kɔ.zi\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 82398, derived from the frequency rank of both members and their visual similarity.
coi is recorded at frequency rank #40,676, classified as anadj, pronounced \kwa\. cosy is at rank #41,722, tagged as anoun, pronounced \kɔ.zi\.
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 82398, this pair ranks #16,815 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of coi vs cosy
Shared letters: co. Private to "coi": i. Private to "cosy": sy.
"coi" · 3 letters · shape CVV · "cosy" · 4 letters · shape CVCV
Known mistypes of this pair
- cosy ← ccosy · cossy · cosyy · coys · csoy · ocsy
Frequency comparison
Frequently Asked Questions
Can "coi" and "cosy" be used interchangeably?
Which is more common, "coi" or "cosy"?
Remembering coi vs cosy
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “coi”; for a noun, it's “cosy”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “coi” entry
- Browse more pairs most likely to be confused. Most confusable