Which to use
“alter” and “alterar” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,689
- “alter” frequency rank
- #10,258
- “alterar” frequency rank
- 36947
- confusion score
Side-by-Side Comparison
| Feature | alter | alterar |
|---|---|---|
| Definition | Alterar. | Cambiar la forma, esencia, estructura o composición de algo. |
Where the eye mixes alter and alterar
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between alter and alterar
A purely visual mix-up. alter (/ˈɔːltə(ɹ)/) and alterar ([al̪t̪eˈɾaɾ]) 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 “alterar”. Our composite confusion score for this pair is 36947, 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)/. alterar is at rank #10,258, tagged as averb, pronounced [al̪t̪eˈɾaɾ].
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 36947, this pair ranks #177,938 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of alter vs alterar
Shared letters: aelrt. Private to "alter": -. Private to "alterar": -.
"alter" · 5 letters · shape VCCVC · "alterar" · 7 letters · shape VCCVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "alter" and "alterar" mean the same thing in a sentence?
In ordinary Spanish text, does "alter" or "alterar" show up more?
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 "alterar" - compare definitions side by side with the headword page. Word entry
- This pair ranks #177,938 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "alter" and "alterar" also get mixed up with nearby pairs, the highest-scored neighbour is "Aber vs alter". 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 #177,938 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.