Which to use
“ilusión” is a noun and “iluso” is an adjective - they look or sound alike but fill different roles in a sentence.
- #3,489
- “ilusión” frequency rank
- #32,701
- “iluso” frequency rank
- 36190
- confusion score
Side-by-Side Comparison
| Feature | ilusión | iluso |
|---|---|---|
| Definition | Percepción o sensación que produce una imagen errónea de la realidad. | Que es fácil de engañar por confiar demasiado en la bondad de los demás. |
Where the eye mixes ilusión and iluso
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses ilusión with iluso
These two trip readers on the page rather than in the ear: ilusión is [iluˈsjõn] while iluso is [iˈluso]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 36190, derived from the frequency rank of both members and their visual similarity.
ilusión is recorded at frequency rank #3,489, classified as anoun, pronounced [iluˈsjõn]. iluso is at rank #32,701, tagged as anadj, pronounced [iˈluso].
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 36190, this pair ranks #181,965 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ilusión vs iluso
Shared letters: ilsu. Private to "ilusión": nó. Private to "iluso": o.
"ilusión" · 7 letters · shape VCVCVVC · "iluso" · 5 letters · shape VCVCV
Known mistypes of this pair
- iluso ← illuso · ilsuo · iluos · ilusso · iulso · liuso
Frequently Asked Questions
Is swapping "ilusión" for "iluso" ever safe?
Which is more common, "ilusión" or "iluso"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ilusión" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iluso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #181,965 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ilusión" and "iluso" also get mixed up with nearby pairs, the highest-scored neighbour is "ilo vs iluso". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #181,965 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.