rayvsrexWhich spelling fits?

Which to use

“ray” and “rex” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#6,350
“ray” frequency rank
#13,343
“rex” frequency rank
19693
confusion score

Side-by-Side Comparison

Feature ray rex
Definition Rayo. Rey, monarca.

Where the eye mixes ray and rex

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ray
3 ch
rex

Look-alike desk: ray vs rex

A purely visual mix-up. ray (/ɹeɪ/) 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 19693, derived from the frequency rank of both members and their visual similarity.

ray is recorded at frequency rank #6,350, classified as anoun, pronounced /ɹeɪ/. 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 19693, this pair ranks #262,605 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ray vs rex

Shared letters: r. Private to "ray": ay. Private to "rex": ex.

"ray" · 3 letters · shape CVV  ·  "rex" · 3 letters · shape CVC

Frequently Asked Questions

Can "ray" and "rex" be used interchangeably?
No. They are said differently (/ɹeɪ/ versus /ˈreːks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "ray" or "rex" show up more?
"ray" is the more common of the two: it sits at frequency rank #6,350 in our Spanish list, against #13,343 for "rex". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "ray" and "rex" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ray" 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 #262,605 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ray" and "rex" also get mixed up with nearby pairs, the highest-scored neighbour is "rema vs rex". Nearby pair

Confusion rank #262,605 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list