reivsRuaWhich spelling fits?

Quick tell: rei is a noun, Rua is a name, so they fill different roles in a sentence.

Which to use

“rei” is a noun and “Rua” is a name - they look or sound alike but fill different roles in a sentence.

#24,881
“rei” frequency rank
#49,605
“Rua” frequency rank
74486
confusion score

Side-by-Side Comparison

Feature rei Rua
Definition A Portuguese real A surname.

Letter map: rei vs Rua

Shared letters muted; letters that set rei and Rua apart highlighted. Shared run: 1. rei and Rua follow the identical consonant-vowel pattern (CVV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
rei
3 ch
Rua

Part-of-speech tell for rei / Rua

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: rei is anoun and Ruaaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 74486, derived from the frequency rank of both members and their visual similarity.

rei is recorded at frequency rank #24,881, classified as anoun. Rua is at rank #49,605, tagged as aname.

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 74486, this pair ranks #36,207 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of rei vs Rua

Shared letters: r. Private to "rei": ei. Private to "Rua": au.

"rei" · 3 letters · shape CVV  ·  "Rua" · 3 letters · shape CVV

Frequently Asked Questions

Do "rei" and "Rua" mean the same thing in a sentence?
No - they are not even the same part of speech. "rei" is a noun and "Rua" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "rei" vs "Rua" - which ranks higher?
"rei" is the more common of the two: it sits at frequency rank #24,881 in our English list, against #49,605 for "Rua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "rei" vs "Rua" is on the table, pick a follow-up below.

  • Full dictionary entry for "rei" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Rua" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,207 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "rei" and "Rua" also get mixed up with nearby pairs, the highest-scored neighbour is "Rua vs Ruhr". Nearby pair

Confusion rank #36,207 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list