doivsduoWhat's the difference?

Quick tell: doi is a verb, duo is a num, so they fill different roles in a sentence.

Which to use

“doi” is a verb and “duo” is a num - they look or sound alike but fill different roles in a sentence.

#42,427
“doi” frequency rank
#5,822
“duo” frequency rank
48249
confusion score

Side-by-Side Comparison

Feature doi duo
Definition 3. Person Singular Indikativ Präsens Aktiv des Verbs doić zwei

Letter map: doi vs duo

Shared letters muted; letters that set doi and duo apart highlighted. Shared run: 2.

3 ch
doi
3 ch
duo

Role in the sentence - doi and duo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: doi is averb and duoanum. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48249, derived from the frequency rank of both members and their visual similarity.

doi is recorded at frequency rank #42,427, classified as averb, pronounced [ˈdɔji]. duo is at rank #5,822, tagged as anum, 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 48249, this pair ranks #1,255,452 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of doi vs duo

Shared letters: do. Private to "doi": i. Private to "duo": u.

"doi" · 3 letters · shape CVV  ·  "duo" · 3 letters · shape CVV

Frequently Asked Questions

Do "doi" and "duo" mean the same thing in a sentence?
No - they are not even the same part of speech. "doi" is a verb and "duo" a num, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "doi" vs "duo" - which ranks higher?
"duo" is the more common of the two: it sits at frequency rank #5,822 in our German list, against #42,427 for "doi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "doi" and "duo".

  • Full dictionary entry for "doi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,255,452 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "doi" and "duo" also get mixed up with nearby pairs, the highest-scored neighbour is "doi vs dörr". Nearby pair

Confusion rank #1,255,452 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