Which to use
“lastra” and “lustro” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,186
- “lastra” frequency rank
- #42,548
- “lustro” frequency rank
- 79734
- confusion score
Side-by-Side Comparison
| Feature | lastra | lustro |
|---|---|---|
| Definition | Piedra plana que sale de la cantera en hojas planas y de poco grueso, a manera de tablas. | Espacio de tiempo de cinco años. |
Where the eye mixes lastra and lustro
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between lastra and lustro
A purely visual mix-up. lastra ([ˈlast̪ɾa]) and lustro ([ˈlust̪ɾo]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 79734, derived from the frequency rank of both members and their visual similarity.
lastra is recorded at frequency rank #37,186, classified as anoun, pronounced [ˈlast̪ɾa]. 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 79734, this pair ranks #12,617 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of lastra vs lustro
Shared letters: lrst. Private to "lastra": a. Private to "lustro": ou.
"lastra" · 6 letters · shape CVCCCV · "lustro" · 6 letters · shape CVCCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "lastra" for "lustro" ever safe?
Which is more common, "lastra" or "lustro"?
Useful next steps
Eye-level mix-up between "lastra" and "lustro" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "lastra" 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 #12,617 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "lastra" and "lustro" also get mixed up with nearby pairs, the highest-scored neighbour is "lustro vs lustros". 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 #12,617 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.