Ob vs off, What's the Difference?

Which to use

“Ob” is a name and “off” is an adjective - they look or sound alike but fill different roles in a sentence.

#31,155
“Ob” frequency rank: #5,054
“off” frequency rank: 36209
confusion score

Side-by-Side Comparison

Feature	Ob	off
Definition	Fleuve de Sibérie, qui se jette dans l’océan Arctique.	Hors antenne ; non diffusé.

Letter map: Ob vs off

Shared letters muted; letters that set Ob and off apart highlighted. Shared run: 1.

2 ch

3 ch

off

Role in the sentence - Ob and off

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Ob is aname and offanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 36209, derived from the frequency rank of both members and their visual similarity.

Ob is recorded at frequency rank #31,155, classified as aname. off is at rank #5,054, tagged as anadj, pronounced \ɔf\.

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 36209, this pair ranks #271,235 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Ob vs off

Shared letters: o. Private to "Ob": b. Private to "off": f.

"Ob" · 2 letters · shape VC · "off" · 3 letters · shape VCC

Frequently Asked Questions

Do "Ob" and "off" mean the same thing in a sentence?

No - they are not even the same part of speech. "Ob" is a name and "off" an adjective, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "Ob" or "off"?

"off" is the more common of the two: it sits at frequency rank #5,054 in our French list, against #31,155 for "Ob". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "Ob" and "off".

Full dictionary entry for "Ob" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "off" - compare definitions side by side with the headword page. Word entry
This pair ranks #271,235 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"Ob" and "off" also get mixed up with nearby pairs, the highest-scored neighbour is "Ob vs och". Nearby pair

Confusion rank #271,235 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.