Which to use
“fis” is a verb and “fly” is a noun - they look or sound alike but fill different roles in a sentence.
- #16,880
- “fis” frequency rank
- #18,205
- “fly” frequency rank
- 35085
- confusion score
Side-by-Side Comparison
| Feature | fis | fly |
|---|---|---|
| Definition | Première personne du singulier du passé simple de faire. | Braguette. |
Where the eye mixes fis and fly
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: fis vs fly
These two trip readers on the page rather than in the ear: fis is \fi\ while fly is \flaj\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35085, derived from the frequency rank of both members and their visual similarity.
fis is recorded at frequency rank #16,880, classified as averb, pronounced \fi\. fly is at rank #18,205, tagged as anoun, pronounced \flaj\.
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 35085, this pair ranks #279,315 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fis vs fly
Shared letters: f. Private to "fis": is. Private to "fly": ly.
"fis" · 3 letters · shape CVC · "fly" · 3 letters · shape CCV
Frequently Asked Questions
Do "fis" and "fly" mean the same thing in a sentence?
In ordinary French text, does "fis" or "fly" show up more?
What to do next
Eye-level mix-up between "fis" and "fly" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fis" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fly" - compare definitions side by side with the headword page. Word entry
- This pair ranks #279,315 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fis" and "fly" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fly". Nearby pair
Confusion rank #279,315 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.