renovsrexTell them apart

Which to use

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

#20,999
“reno” frequency rank
#12,766
“rex” frequency rank
33765
confusion score

Side-by-Side Comparison

Feature reno rex
Definition rim cachorro

Letter map: reno vs rex

Shared letters muted; letters that set reno and rex apart highlighted. Shared run: 2.

4 ch
reno
3 ch
rex

Pair insight - reno / rex

reno and rex are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 33765, derived from the frequency rank of both members and their visual similarity.

reno is recorded at frequency rank #20,999, classified as anoun, pronounced /ˈrɛ.nɔ/. rex is at rank #12,766, tagged as anoun.

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 33765, this pair ranks #33,656 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of reno vs rex

Shared letters: er. Private to "reno": no. Private to "rex": x.

"reno" · 4 letters · shape CVCV  ·  "rex" · 3 letters · shape CVC

Known mistypes of this pair

  • renoerno · renno · reon · rneo · rreno

Frequently Asked Questions

Do "reno" and "rex" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary Portuguese text, does "reno" or "rex" show up more?
"rex" is the more common of the two: it sits at frequency rank #12,766 in our Portuguese list, against #20,999 for "reno". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "reno" and "rex". Here's where to go from here.

  • Full dictionary entry for "reno" 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 #33,656 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "reno" and "rex" also get mixed up with nearby pairs, the highest-scored neighbour is "reno vs revi". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #33,656 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list