Which to use
“Ob” is a name and “om” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #31,155
- “Ob” frequency rank
- #7,092
- “om” frequency rank
- 38247
- confusion score
Side-by-Side Comparison
| Feature | Ob | om |
|---|---|---|
| Definition | Fleuve de Sibérie, qui se jette dans l’océan Arctique. | On. |
Letter map: Ob vs om
Shared letters muted; letters that set Ob and om apart highlighted. Shared run: 1.
Part-of-speech tell for Ob / om
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Ob is aname and omapronoun. On the page they differ by a single letter - b in “Ob” becomes m in “om”. Our composite confusion score for this pair is 38247, derived from the frequency rank of both members and their visual similarity.
Ob is recorded at frequency rank #31,155, classified as aname. om is at rank #7,092, tagged as apron.
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 38247, this pair ranks #256,636 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Ob vs om
Shared letters: o. Private to "Ob": b. Private to "om": m.
"Ob" · 2 letters · shape VC · "om" · 2 letters · shape VC
Frequently Asked Questions
Is swapping "Ob" for "om" ever safe?
Which is more common, "Ob" or "om"?
After this comparison
Pair "Ob" vs "om" 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 "om" - compare definitions side by side with the headword page. Word entry
- This pair ranks #256,636 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "Ob" and "om" also get mixed up with nearby pairs, the highest-scored neighbour is "Ob vs och". Nearby pair
Confusion rank #256,636 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.