Which to use
“ib” is an abbrev and “isi” is a noun - they look or sound alike but fill different roles in a sentence.
- #24,896
- “ib” frequency rank
- #39,822
- “isi” frequency rank
- 64718
- confusion score
Side-by-Side Comparison
| Feature | ib | isi |
|---|---|---|
| Definition | Ibidem. | El extranjero, tierra o país de donde uno no es. |
Where the eye mixes ib and isi
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ib runs 2 letters (VC) against isi's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: ib vs isi
These two trip readers on the page rather than in the ear: ib is [ˈiβ̞] while isi is /ì.sí/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (abbrev vs noun), which is usually the fastest check. Our composite confusion score for this pair is 64718, derived from the frequency rank of both members and their visual similarity.
ib is recorded at frequency rank #24,896, classified as anabbrev, pronounced [ˈiβ̞]. isi is at rank #39,822, tagged as anoun, pronounced /ì.sí/.
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 64718, this pair ranks #44,778 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of ib vs isi
Shared letters: i. Private to "ib": b. Private to "isi": s.
"ib" · 2 letters · shape VC · "isi" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "ib" for "isi" ever safe?
Which is more common, "ib" or "isi"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ib" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "isi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #44,778 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ib" and "isi" also get mixed up with nearby pairs, the highest-scored neighbour is "isi vs iza". Nearby pair
Confusion rank #44,778 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.