Which to use
“lui” is a verb and “luna” is a noun - they look or sound alike but fill different roles in a sentence.
- #34,790
- “lui” frequency rank
- #9,712
- “luna” frequency rank
- 44502
- confusion score
Side-by-Side Comparison
| Feature | lui | luna |
|---|---|---|
| Definition | alugar (tomar de aluguel) | lua |
Where the eye mixes lui and luna
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. lui runs 3 letters (CVV) against luna's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between lui and luna
These two trip readers on the page rather than in the ear: lui is /ˈlu.i/. while luna is /ˈluna/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 44502, derived from the frequency rank of both members and their visual similarity.
lui is recorded at frequency rank #34,790, classified as averb, pronounced /ˈlu.i/.. luna is at rank #9,712, tagged as anoun, pronounced /ˈluna/.
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 44502, this pair ranks #20,973 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of lui vs luna
Shared letters: lu. Private to "lui": i. Private to "luna": an.
"lui" · 3 letters · shape CVV · "luna" · 4 letters · shape CVCV
Known mistypes of this pair
- luna ← lluna · lnua · luan · lunna · ulna
Frequently Asked Questions
Do "lui" and "luna" mean the same thing in a sentence?
Which is more common, "lui" or "luna"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "lui" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "luna" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,973 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "lui" and "luna" also get mixed up with nearby pairs, the highest-scored neighbour is "ludo vs lui". 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 #20,973 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.