Which to use
“reo” is an adjective and “rex” is a noun - they look or sound alike but fill different roles in a sentence.
- #27,380
- “reo” frequency rank
- #13,343
- “rex” frequency rank
- 40723
- confusion score
Side-by-Side Comparison
| Feature | reo | rex |
|---|---|---|
| Definition | Acusado en juicio, especialmente el criminal. | Rey, monarca. |
Where the eye mixes reo and rex
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses reo with rex
These two trip readers on the page rather than in the ear: reo is [ˈreo] while rex is /ˈreːks/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - o in “reo” becomes x in “rex”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 40723, derived from the frequency rank of both members and their visual similarity.
reo is recorded at frequency rank #27,380, classified as anadj, pronounced [ˈreo]. rex is at rank #13,343, tagged as anoun, pronounced /ˈreːks/.
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 40723, this pair ranks #157,542 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of reo vs rex
Shared letters: er. Private to "reo": o. Private to "rex": x.
"reo" · 3 letters · shape CVV · "rex" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "reo" for "rex" ever safe?
In ordinary Spanish text, does "reo" or "rex" show up more?
What to do next
Eye-level mix-up between "reo" and "rex" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "reo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rex" - compare definitions side by side with the headword page. Word entry
- This pair ranks #157,542 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "reo" and "rex" also get mixed up with nearby pairs, the highest-scored neighbour is "rengo vs reo". Nearby pair
Confusion rank #157,542 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.