inavsIusWhich spelling fits?

Quick tell: ina is a contraction, Ius is a name, so they fill different roles in a sentence.

Which to use

“ina” is a contraction and “Ius” is a name - they look or sound alike but fill different roles in a sentence.

#37,663
“ina” frequency rank
#43,081
“Ius” frequency rank
80744
confusion score

Side-by-Side Comparison

Feature ina Ius
Definition Contracción de la preposición in y el adjetivo posesivo a Apellido.

Where the eye mixes ina and Ius

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ina
3 ch
Ius

Look-alike desk: ina vs Ius

These two trip readers on the page rather than in the ear: ina is [ˈɪnˠə] 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 (contraction vs name), which is usually the fastest check. Our composite confusion score for this pair is 80744, derived from the frequency rank of both members and their visual similarity.

ina is recorded at frequency rank #37,663, classified as acontraction, pronounced [ˈɪnˠə]. 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 80744, this pair ranks #11,284 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of ina vs Ius

Shared letters: i. Private to "ina": an. Private to "Ius": su.

"ina" · 3 letters · shape VCV  ·  "Ius" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "ina" for "Ius" ever safe?
No - they are not even the same part of speech. "ina" is a contraction and "Ius" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ina" vs "Ius" - which ranks higher?
"ina" is the more common of the two: it sits at frequency rank #37,663 in our Spanish list, against #43,081 for "Ius". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "ina" and "Ius" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ina" 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 #11,284 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ina" and "Ius" also get mixed up with nearby pairs, the highest-scored neighbour is "Ius vs iza". Nearby pair

Confusion rank #11,284 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list