Which to use
“rei” and “rex” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #14,940
- “rei” frequency rank
- #13,343
- “rex” frequency rank
- 28283
- confusion score
Side-by-Side Comparison
| Feature | rei | rex |
|---|---|---|
| Definition | Grafía obsoleta de rey. | Rey, monarca. |
Where the eye mixes rei and rex
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses rei with rex
A purely visual mix-up. rei ([ˈrej]) and rex (/ˈreːks/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - i in “rei” becomes x in “rex”. Our composite confusion score for this pair is 28283, derived from the frequency rank of both members and their visual similarity.
rei is recorded at frequency rank #14,940, classified as anoun, pronounced [ˈrej]. 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 28283, this pair ranks #222,755 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rei vs rex
Shared letters: er. Private to "rei": i. Private to "rex": x.
"rei" · 3 letters · shape CVV · "rex" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "rei" for "rex" ever safe?
Frequency check: "rei" vs "rex" - 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 "rei" 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 #222,755 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "rei" and "rex" also get mixed up with nearby pairs, the highest-scored neighbour is "Rail vs rei". Nearby pair
Confusion rank #222,755 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.