Which to use
“luso” is an adjective and “lustro” is a noun - they look or sound alike but fill different roles in a sentence.
- #44,297
- “luso” frequency rank
- #42,548
- “lustro” frequency rank
- 86845
- confusion score
Side-by-Side Comparison
| Feature | luso | lustro |
|---|---|---|
| Definition | Originario, relativo a, o propio de Portugal. | Espacio de tiempo de cinco años. |
Where the eye mixes luso and lustro
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. luso runs 4 letters (CVCV) against lustro's 6 (CVCCCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: luso vs lustro
These two trip readers on the page rather than in the ear: luso is [ˈluso] while lustro is [ˈlust̪ɾo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 86845, derived from the frequency rank of both members and their visual similarity.
luso is recorded at frequency rank #44,297, classified as anadj, pronounced [ˈluso]. lustro is at rank #42,548, tagged as anoun, pronounced [ˈlust̪ɾo].
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 86845, this pair ranks #4,970 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of luso vs lustro
Shared letters: losu. Private to "luso": -. Private to "lustro": rt.
"luso" · 4 letters · shape CVCV · "lustro" · 6 letters · shape CVCCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "luso" for "lustro" ever safe?
Which is more common, "luso" or "lustro"?
After this comparison
Eye-level mix-up between "luso" and "lustro" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "luso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lustro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #4,970 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "luso" and "lustro" also get mixed up with nearby pairs, the highest-scored neighbour is "ledo vs luso". 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 #4,970 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.