luavsLuisTell them apart

Which to use

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

#1,619
“lua” frequency rank
#2,383
“Luis” frequency rank
4002
confusion score

Side-by-Side Comparison

Feature lua Luis
Definition satélite natural da Terra, que se destaca no céu durante a noite Luís

Where the eye mixes lua and Luis

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
lua
4 ch
Luis

Why the eye confuses lua with Luis

A purely visual mix-up. lua (/'lua/) and Luis (/'lwjs/.) 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 1 letter(s) in length. Our composite confusion score for this pair is 4002, derived from the frequency rank of both members and their visual similarity.

lua is recorded at frequency rank #1,619, classified as anoun, pronounced /'lua/. Luis is at rank #2,383, tagged as anoun, pronounced /'lwjs/..

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 4002, this pair ranks #71,038 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of lua vs Luis

Shared letters: lu. Private to "lua": a. Private to "Luis": is.

"lua" · 3 letters · shape CVV  ·  "Luis" · 4 letters · shape CVVC

Known mistypes of this pair

  • Luislius · lluis · luiss · lusi · ulis

Frequently Asked Questions

Do "lua" and "Luis" mean the same thing in a sentence?
No. They are said differently (/'lua/ versus /'lwjs/.) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "lua" or "Luis"?
"lua" is the more common of the two: it sits at frequency rank #1,619 in our Portuguese list, against #2,383 for "Luis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "lua" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Luis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #71,038 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "lua" and "Luis" also get mixed up with nearby pairs, the highest-scored neighbour is "laca vs lua". 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 #71,038 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