IBvsioTell them apart

Quick tell: IB is a noun, io is a pronoun, so they fill different roles in a sentence.

Which to use

“IB” is a noun and “io” is a pronoun - they look or sound alike but fill different roles in a sentence.

#13,398
“IB” frequency rank
#26,465
“io” frequency rank
39863
confusion score

Side-by-Side Comparison

Feature IB io
Definition indischer Inlandsgeheimdienst Für die 1. Person Singular Nominativ/Subjektfall – im Objektfall: siehe me

Letter map: IB vs io

Shared letters muted; letters that set IB and io apart highlighted. Shared run: 1.

2 ch
IB
2 ch
io

Grammar separator: IB vs io

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IB is anoun and ioapronoun. On the page they differ by a single letter - b in “IB” becomes o in “io”. Our composite confusion score for this pair is 39863, derived from the frequency rank of both members and their visual similarity.

IB is recorded at frequency rank #13,398, classified as anoun, pronounced [aɪ̯ˈbiː]. io is at rank #26,465, tagged as apron, pronounced […].

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 39863, this pair ranks #1,524,756 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of IB vs io

Shared letters: i. Private to "IB": b. Private to "io": o.

"IB" · 2 letters · shape VC  ·  "io" · 2 letters · shape VV

Frequently Asked Questions

Is swapping "IB" for "io" ever safe?
No - they are not even the same part of speech. "IB" is a noun and "io" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "IB" vs "io" - which ranks higher?
"IB" is the more common of the two: it sits at frequency rank #13,398 in our German list, against #26,465 for "io". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "IB" and "io".

  • Full dictionary entry for "IB" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "io" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,524,756 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "IB" and "io" also get mixed up with nearby pairs, the highest-scored neighbour is "io vs puzzles". Nearby pair

Confusion rank #1,524,756 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list