Which to use
“ill” is an adjective and “IRL” is an adverb - they look or sound alike but fill different roles in a sentence.
- #15,649
- “ill” frequency rank
- #14,492
- “IRL” frequency rank
- 30141
- confusion score
Side-by-Side Comparison
| Feature | ill | IRL |
|---|---|---|
| Definition | Malade, malsain. | Où l’on rencontre les gens physiquement, par opposition aux relations dématérialisées que l'on peut avoir via Internet. |
Where the eye mixes ill and IRL
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between ill and IRL
These two trip readers on the page rather than in the ear: ill is \ˈɪl\ while IRL is \i.ɛ.ʁɛl\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “ill” becomes r in “IRL”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 30141, derived from the frequency rank of both members and their visual similarity.
ill is recorded at frequency rank #15,649, classified as anadj, pronounced \ˈɪl\. IRL is at rank #14,492, tagged as anadv, pronounced \i.ɛ.ʁɛl\.
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 30141, this pair ranks #312,233 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ill vs IRL
Shared letters: il. Private to "ill": -. Private to "IRL": r.
"ill" · 3 letters · shape VCC · "IRL" · 3 letters · shape VCC
Frequently Asked Questions
Do "ill" and "IRL" mean the same thing in a sentence?
In ordinary French text, does "ill" or "IRL" show up more?
Useful next steps
Eye-level mix-up between "ill" and "IRL" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ill" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "IRL" - compare definitions side by side with the headword page. Word entry
- This pair ranks #312,233 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ill" and "IRL" also get mixed up with nearby pairs, the highest-scored neighbour is "ill vs isi". Nearby pair
Confusion rank #312,233 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.