id vs io, What's the Difference?

Which to use

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

#5,272
“id” frequency rank: #26,465
“io” frequency rank: 31737
confusion score

Side-by-Side Comparison

Feature	id	io
Definition	[1] Nominativ Singular Neutrum des Pronomens is	Für die 1. Person Singular Nominativ/Subjektfall – im Objektfall: siehe me

Letter map: id vs io

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

2 ch

Part-of-speech tell for id / io

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: id is anunknown and ioapronoun. On the page they differ by a single letter - d in “id” becomes o in “io”. Our composite confusion score for this pair is 31737, derived from the frequency rank of both members and their visual similarity.

id is recorded at frequency rank #5,272, classified as anunknown, pronounced […]. 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 31737, this pair ranks #1,722,126 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of id vs io

Shared letters: i. Private to "id": d. Private to "io": o.

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

Frequently Asked Questions

Is swapping "id" for "io" ever safe?

No - they are not even the same part of speech. "id" is an unknown and "io" a pronoun, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "id" vs "io" - which ranks higher?

"id" is the more common of the two: it sits at frequency rank #5,272 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.

After this comparison

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

Full dictionary entry for "id" 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 #1,722,126 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"id" and "io" also get mixed up with nearby pairs, the highest-scored neighbour is "io vs puzzles". Nearby pair

Confusion rank #1,722,126 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.