Which to use
“alter” and “alterno” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,689
- “alter” frequency rank
- #30,328
- “alterno” frequency rank
- 57017
- confusion score
Side-by-Side Comparison
| Feature | alter | alterno |
|---|---|---|
| Definition | Alterar. | Primera persona del singular (yo) del presente de indicativo de alternar. |
Where the eye mixes alter and alterno
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: alter vs alterno
A purely visual mix-up. alter (/ˈɔːltə(ɹ)/) and alterno ([al̪ˈt̪eɾno]) 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 2 extra letter(s) - “alter” sits inside “alterno”. Our composite confusion score for this pair is 57017, derived from the frequency rank of both members and their visual similarity.
alter is recorded at frequency rank #26,689, classified as averb, pronounced /ˈɔːltə(ɹ)/. alterno is at rank #30,328, tagged as averb, pronounced [al̪ˈt̪eɾno].
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 57017, this pair ranks #72,209 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of alter vs alterno
Shared letters: aelrt. Private to "alter": -. Private to "alterno": no.
"alter" · 5 letters · shape VCCVC · "alterno" · 7 letters · shape VCCVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "alter" and "alterno" mean the same thing in a sentence?
Frequency check: "alter" vs "alterno" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "alter" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "alterno" - compare definitions side by side with the headword page. Word entry
- This pair ranks #72,209 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "alter" and "alterno" also get mixed up with nearby pairs, the highest-scored neighbour is "albergó vs alterno". 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 #72,209 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.