ibvsimWhich spelling fits?

Quick tell: ib is a abbrev, im is an adjective, so they fill different roles in a sentence.

Which to use

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

#24,896
“ib” frequency rank
#10,152
“im” frequency rank
35048
confusion score

Side-by-Side Comparison

Feature ib im
Definition Ibidem. Mi.

Letter map: ib vs im

Shared letters muted; letters that set ib and im apart highlighted. Shared run: 1.

2 ch
ib
2 ch
im

Grammar separator: ib vs im

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ib is anabbrev and imanadjective. On the page they differ by a single letter - b in “ib” becomes m in “im”. Our composite confusion score for this pair is 35048, 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]. im is at rank #10,152, tagged as anadj.

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 35048, this pair ranks #188,140 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ib vs im

Shared letters: i. Private to "ib": b. Private to "im": m.

"ib" · 2 letters · shape VC  ·  "im" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "ib" for "im" ever safe?
No - they are not even the same part of speech. "ib" is an abbrev and "im" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ib" or "im" show up more?
"im" is the more common of the two: it sits at frequency rank #10,152 in our Spanish list, against #24,896 for "ib". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "ib" and "im". Here's where to go from here.

  • Full dictionary entry for "ib" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "im" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #188,140 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ib" and "im" also get mixed up with nearby pairs, the highest-scored neighbour is "ib vs iza". Nearby pair

Confusion rank #188,140 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