Which to use
“opt” is a verb and “ox” is a noun - they look or sound alike but fill different roles in a sentence.
- #42,502
- “opt” frequency rank
- #40,903
- “ox” frequency rank
- 83405
- confusion score
Side-by-Side Comparison
| Feature | opt | ox |
|---|---|---|
| Definition | Opter. | Bœuf. |
Where the eye mixes opt and ox
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between opt and ox
These two trip readers on the page rather than in the ear: opt is \ɒpt\ while ox is \ɒks\. 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 83405, derived from the frequency rank of both members and their visual similarity.
opt is recorded at frequency rank #42,502, classified as averb, pronounced \ɒpt\. ox is at rank #40,903, tagged as anoun, pronounced \ɒks\.
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 83405, this pair ranks #14,907 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of opt vs ox
Shared letters: o. Private to "opt": pt. Private to "ox": x.
"opt" · 3 letters · shape VCC · "ox" · 2 letters · shape VC
Frequently Asked Questions
Is swapping "opt" for "ox" ever safe?
Frequency check: "opt" vs "ox" - which ranks higher?
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 "opt" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ox" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,907 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "opt" and "ox" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs opt". Nearby pair
Confusion rank #14,907 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.