Which to use
“ok” is a num and “os” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #1,645
- “ok” frequency rank
- #449
- “os” frequency rank
- 2094
- confusion score
Side-by-Side Comparison
| Feature | ok | os |
|---|---|---|
| Definition | Ocho. | Caso acusativo y dativo del pronombre personal vosotros, una de las formas de la segunda persona del plural en español. |
Where the eye mixes ok and os
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses ok with os
These two trip readers on the page rather than in the ear: ok is /ˈok/ while os is [os]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - k in “ok” becomes s in “os”, and the parts of speech differ too (num vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 2094, derived from the frequency rank of both members and their visual similarity.
ok is recorded at frequency rank #1,645, classified as anum, pronounced /ˈok/. os is at rank #449, tagged as apron, pronounced [os].
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 2094, this pair ranks #320,986 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ok vs os
Shared letters: o. Private to "ok": k. Private to "os": s.
"ok" · 2 letters · shape VC · "os" · 2 letters · shape VC
Frequently Asked Questions
Can "ok" and "os" be used interchangeably?
Which is more common, "ok" or "os"?
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 "ok" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "os" - compare definitions side by side with the headword page. Word entry
- This pair ranks #320,986 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ok" and "os" also get mixed up with nearby pairs, the highest-scored neighbour is "ok vs ome". Nearby pair
Confusion rank #320,986 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.