Which to use
“Obi” is a name and “osm” is a noun - they look or sound alike but fill different roles in a sentence.
- #35,620
- “Obi” frequency rank
- #41,435
- “osm” frequency rank
- 77055
- confusion score
Side-by-Side Comparison
| Feature | Obi | osm |
|---|---|---|
| Definition | Variante de Ob. | Osmium. |
Where the eye mixes Obi and osm
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. Obi (VCV) and osm (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses Obi with osm
These two trip readers on the page rather than in the ear: Obi is [ɔbi] while osm is \ɔsm̥\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 77055, derived from the frequency rank of both members and their visual similarity.
Obi is recorded at frequency rank #35,620, classified as aname, pronounced [ɔbi]. osm is at rank #41,435, tagged as anoun, pronounced \ɔsm̥\.
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 77055, this pair ranks #29,438 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of Obi vs osm
Shared letters: o. Private to "Obi": bi. Private to "osm": ms.
"Obi" · 3 letters · shape VCV · "osm" · 3 letters · shape VCC
Frequently Asked Questions
Is swapping "Obi" for "osm" ever safe?
Which is more common, "Obi" or "osm"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Obi" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "osm" - compare definitions side by side with the headword page. Word entry
- This pair ranks #29,438 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "Obi" and "osm" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs osm". Nearby pair
Confusion rank #29,438 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.