IBvsidWhich spelling fits?

Quick tell: IB is a noun, id is an unknown, so they fill different roles in a sentence.

Which to use

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

#13,398
“IB” frequency rank
#5,272
“id” frequency rank
18670
confusion score

Side-by-Side Comparison

Feature IB id
Definition indischer Inlandsgeheimdienst [1] Nominativ Singular Neutrum des Pronomens is

Letter map: IB vs id

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

2 ch
IB
2 ch
id

Role in the sentence - IB and id

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IB is anoun and idanunknown. On the page they differ by a single letter - b in “IB” becomes d in “id”. Our composite confusion score for this pair is 18670, 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]. id is at rank #5,272, tagged as anunknown, 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 18670, this pair ranks #1,916,025 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of IB vs id

Shared letters: i. Private to "IB": b. Private to "id": d.

"IB" · 2 letters · shape VC  ·  "id" · 2 letters · shape VC

Frequently Asked Questions

Do "IB" and "id" mean the same thing in a sentence?
No - they are not even the same part of speech. "IB" is a noun and "id" an unknown, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "IB" or "id"?
"id" is the more common of the two: it sits at frequency rank #5,272 in our German list, against #13,398 for "IB". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "IB" vs "id" is on the table, pick a follow-up below.

  • Full dictionary entry for "IB" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "id" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,916,025 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "IB" and "id" also get mixed up with nearby pairs, the highest-scored neighbour is "IB vs IMs". Nearby pair

Confusion rank #1,916,025 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