Which to use
“obs” is a verb and “od” is a noun - they look or sound alike but fill different roles in a sentence.
- #13,851
- “obs” frequency rank
- #25,066
- “od” frequency rank
- 38917
- confusion score
Side-by-Side Comparison
| Feature | obs | od |
|---|---|---|
| Definition | Deuxième personne du singulier de l’impératif présent de obsen. | Désigne un fluide, sorte de force vitale qui selon Karl von Reichenbach, émanerait des êtres humains. |
Where the eye mixes obs and od
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses obs with od
These two trip readers on the page rather than in the ear: obs is \ɔps\ while od is \ɔd\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38917, derived from the frequency rank of both members and their visual similarity.
obs is recorded at frequency rank #13,851, classified as averb, pronounced \ɔps\. od is at rank #25,066, tagged as anoun, pronounced \ɔd\.
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 38917, this pair ranks #251,858 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of obs vs od
Shared letters: o. Private to "obs": bs. Private to "od": d.
"obs" · 3 letters · shape VCC · "od" · 2 letters · shape VC
Frequently Asked Questions
Can "obs" and "od" be used interchangeably?
Which is more common, "obs" or "od"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "obs" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "od" - compare definitions side by side with the headword page. Word entry
- This pair ranks #251,858 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "obs" and "od" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs od". Nearby pair
Confusion rank #251,858 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.