Which to use
“ido” and “ill” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,216
- “ido” frequency rank
- #43,059
- “ill” frequency rank
- 44275
- confusion score
Side-by-Side Comparison
| Feature | ido | ill |
|---|---|---|
| Definition | Loco, falto de cordura. | Enfermo. |
Where the eye mixes ido and ill
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ido (VCV) and ill (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: ido vs ill
A purely visual mix-up. ido ([ˈið̞o]) and ill (/ɪl/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 44275, derived from the frequency rank of both members and their visual similarity.
ido is recorded at frequency rank #1,216, classified as anadj, pronounced [ˈið̞o]. ill is at rank #43,059, tagged as anadj, pronounced /ɪl/.
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 44275, this pair ranks #137,969 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ido vs ill
Shared letters: i. Private to "ido": do. Private to "ill": l.
"ido" · 3 letters · shape VCV · "ill" · 3 letters · shape VCC
Frequently Asked Questions
Is swapping "ido" for "ill" ever safe?
Frequency check: "ido" vs "ill" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ido" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ill" - compare definitions side by side with the headword page. Word entry
- This pair ranks #137,969 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ido" and "ill" also get mixed up with nearby pairs, the highest-scored neighbour is "ill vs iza". Nearby pair
Confusion rank #137,969 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.