Which to use
“ion” is a noun and “Ius” is a name - they look or sound alike but fill different roles in a sentence.
- #22,745
- “ion” frequency rank
- #43,081
- “Ius” frequency rank
- 65826
- confusion score
Side-by-Side Comparison
| Feature | ion | Ius |
|---|---|---|
| Definition | Partícula cargada eléctricamente constituida por un átomo o molécula que no es eléctricamente neutro. | Apellido. |
Where the eye mixes ion and Ius
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between ion and Ius
These two trip readers on the page rather than in the ear: ion is [ˈjõn] while Ius is [ˈjus]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 65826, 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]. Ius is at rank #43,081, tagged as aname, pronounced [ˈjus].
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 65826, this pair ranks #41,520 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of ion vs Ius
Shared letters: i. Private to "ion": no. Private to "Ius": su.
"ion" · 3 letters · shape VVC · "Ius" · 3 letters · shape VVC
Frequently Asked Questions
Do "ion" and "Ius" mean the same thing in a sentence?
Frequency check: "ion" vs "Ius" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Ius" - compare definitions side by side with the headword page. Word entry
- This pair ranks #41,520 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ion" and "Ius" also get mixed up with nearby pairs, the highest-scored neighbour is "Ius vs iza". Nearby pair
Confusion rank #41,520 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.