Which to use
“Ob” is a name and “onu” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #31,155
- “Ob” frequency rank
- #4,259
- “onu” frequency rank
- 35414
- confusion score
Side-by-Side Comparison
| Feature | Ob | onu |
|---|---|---|
| Definition | Fleuve de Sibérie, qui se jette dans l’océan Arctique. | Accusatif de o. |
Letter map: Ob vs onu
Shared letters muted; letters that set Ob and onu apart highlighted. Shared run: 1.
Part-of-speech tell for Ob / onu
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Ob is aname and onuapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 35414, derived from the frequency rank of both members and their visual similarity.
Ob is recorded at frequency rank #31,155, classified as aname. onu is at rank #4,259, tagged as apron, pronounced \o.ˈnu\.
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 35414, this pair ranks #276,931 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Ob vs onu
Shared letters: o. Private to "Ob": b. Private to "onu": nu.
"Ob" · 2 letters · shape VC · "onu" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "Ob" for "onu" ever safe?
Frequency check: "Ob" vs "onu" - which ranks higher?
What to do next
Pair "Ob" vs "onu" is on the table, pick a follow-up below.
- Full dictionary entry for "Ob" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "onu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #276,931 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "Ob" and "onu" also get mixed up with nearby pairs, the highest-scored neighbour is "Ob vs och". Nearby pair
Confusion rank #276,931 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.