Which to use
“ill” is an adjective and “IRD” is a name - they look or sound alike but fill different roles in a sentence.
- #15,649
- “ill” frequency rank
- #48,611
- “IRD” frequency rank
- 64260
- confusion score
Side-by-Side Comparison
| Feature | ill | IRD |
|---|---|---|
| Definition | Malade, malsain. | Établissement public à caractère scientifique et technologique (EPST) français, sous la tutelle des ministères chargés de la Recherche et de la Coopération, remplaçant l’Office de la recherche scientifique et technique outre-mer (ORSTOM). |
Letter map: ill vs IRD
Shared letters muted; letters that set ill and IRD apart highlighted. Shared run: 1.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ill is anadjective and IRDaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 64260, 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\. IRD is at rank #48,611, tagged as aname.
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 64260, this pair ranks #77,903 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of ill vs IRD
Shared letters: i. Private to "ill": l. Private to "IRD": dr.
"ill" · 3 letters · shape VCC · "IRD" · 3 letters · shape VCC
Frequently Asked Questions
Can "ill" and "IRD" be used interchangeably?
Which is more common, "ill" or "IRD"?
What to do next
You've compared "ill" and "IRD". Here's where to go from here.
- Full dictionary entry for "ill" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "IRD" - compare definitions side by side with the headword page. Word entry
- This pair ranks #77,903 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ill" and "IRD" also get mixed up with nearby pairs, the highest-scored neighbour is "IRD vs isi". Nearby pair
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.