Which to use
“rex” and “rum” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #12,766
- “rex” frequency rank
- #15,451
- “rum” frequency rank
- 28217
- confusion score
Side-by-Side Comparison
| Feature | rex | rum |
|---|---|---|
| Definition | cachorro | aguardente obtida da destilação do melaço fermentado |
Letter map: rex vs rum
Shared letters muted; letters that set rex and rum apart highlighted. Shared run: 1.
Corpus notes: rex and rum
rex and rum 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 28217, derived from the frequency rank of both members and their visual similarity.
rex is recorded at frequency rank #12,766, classified as anoun. rum is at rank #15,451, tagged as anoun, pronounced /ˈRũ/.
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 28217, this pair ranks #40,617 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rex vs rum
Shared letters: r. Private to "rex": ex. Private to "rum": mu.
"rex" · 3 letters · shape CVC · "rum" · 3 letters · shape CVC
Frequently Asked Questions
Can "rex" and "rum" be used interchangeably?
Frequency check: "rex" vs "rum" - which ranks higher?
Useful next steps
Done with this confusable. These links stay specific to "rex" and "rum".
- Full dictionary entry for "rex" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #40,617 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "rex" and "rum" also get mixed up with nearby pairs, the highest-scored neighbour is "rum vs rust". Nearby pair
Confusion rank #40,617 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.