Which to use
“lui” is a pronoun and “lys” is a noun - they look or sound alike but fill different roles in a sentence.
- #68
- “lui” frequency rank
- #14,079
- “lys” frequency rank
- 14147
- confusion score
Side-by-Side Comparison
| Feature | lui | lys |
|---|---|---|
| Definition | Pronom clitique de la troisième personne du singulier épicène du complément d’objet indirect. | Genre de liliacées qui porte, sur une haute tige, des fleurs à trois pétales et trois sépales pétaloïdes. |
Where the eye mixes lui and lys
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between lui and lys
These two trip readers on the page rather than in the ear: lui is \lɥi\ while lys is \lis\. 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 (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 14147, derived from the frequency rank of both members and their visual similarity.
lui is recorded at frequency rank #68, classified as apron, pronounced \lɥi\. lys is at rank #14,079, tagged as anoun, pronounced \lis\.
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 14147, this pair ranks #397,988 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of lui vs lys
Shared letters: l. Private to "lui": iu. Private to "lys": sy.
"lui" · 3 letters · shape CVV · "lys" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "lui" for "lys" ever safe?
In ordinary French text, does "lui" or "lys" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "lui" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lys" - compare definitions side by side with the headword page. Word entry
- This pair ranks #397,988 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "lui" and "lys" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs lys". Nearby pair
Confusion rank #397,988 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.