ibvsibaTell them apart

Quick tell: ib is a abbrev, iba is a verb, so they fill different roles in a sentence.

Which to use

“ib” is an abbrev and “iba” is a verb - they look or sound alike but fill different roles in a sentence.

#24,896
“ib” frequency rank
#500
“iba” frequency rank
25396
confusion score

Side-by-Side Comparison

Feature ib iba
Definition Ibidem. Primera persona del singular (yo) del pretérito imperfecto de indicativo de ir o de irse.

Where the eye mixes ib and iba

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
ib
3 ch
iba

Why the eye confuses ib with iba

These two trip readers on the page rather than in the ear: ib is [ˈiβ̞] while iba is [ˈiβ̞a]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “ib” sits inside “iba”, and the parts of speech differ too (abbrev vs verb), which is usually the fastest check. Our composite confusion score for this pair is 25396, 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]. iba is at rank #500, tagged as averb, pronounced [ˈiβ̞a].

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 25396, this pair ranks #236,622 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ib vs iba

Shared letters: bi. Private to "ib": -. Private to "iba": a.

"ib" · 2 letters · shape VC  ·  "iba" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "ib" for "iba" ever safe?
No - they are not even the same part of speech. "ib" is an abbrev and "iba" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ib" or "iba" show up more?
"iba" is the more common of the two: it sits at frequency rank #500 in our Spanish list, against #24,896 for "ib". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ib" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iba" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #236,622 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ib" and "iba" also get mixed up with nearby pairs, the highest-scored neighbour is "ib vs iza". Nearby pair

Confusion rank #236,622 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