Which to use
“ion” and “iso” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #22,745
- “ion” frequency rank
- #12,180
- “iso” frequency rank
- 34925
- confusion score
Side-by-Side Comparison
| Feature | ion | iso |
|---|---|---|
| Definition | Partícula cargada eléctricamente constituida por un átomo o molécula que no es eléctricamente neutro. | Cielo |
Where the eye mixes ion and iso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: ion vs iso
A purely visual mix-up. ion ([ˈjõn]) and iso (/ìsó/) 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 34925, derived from the frequency rank of both members and their visual similarity.
ion is recorded at frequency rank #22,745, classified as anoun, pronounced [ˈjõn]. iso is at rank #12,180, tagged as anoun, pronounced /ìsó/.
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 34925, this pair ranks #188,818 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ion vs iso
Shared letters: io. Private to "ion": n. Private to "iso": s.
"ion" · 3 letters · shape VVC · "iso" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "ion" for "iso" ever safe?
Which is more common, "ion" or "iso"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #188,818 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ion" and "iso" also get mixed up with nearby pairs, the highest-scored neighbour is "ion vs iza". Nearby pair
Confusion rank #188,818 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.