alteradavsalternaTell them apart

Quick tell: alterada is a participle, alterna is a verb, so they fill different roles in a sentence.

Which to use

“alterada” is a participle and “alterna” is a verb - they look or sound alike but fill different roles in a sentence.

#18,435
“alterada” frequency rank
#17,331
“alterna” frequency rank
35766
confusion score

Side-by-Side Comparison

Feature alterada alterna
Definition Forma del femenino de alterado, participio de alterar. Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de alternar.

Where the eye mixes alterada and alterna

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

8 ch
alterada
7 ch
alterna

Look-alike desk: alterada vs alterna

These two trip readers on the page rather than in the ear: alterada is [al̪t̪eˈɾað̞a] while alterna is [al̪ˈt̪eɾna]. 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 (participle vs verb), which is usually the fastest check. Our composite confusion score for this pair is 35766, derived from the frequency rank of both members and their visual similarity.

alterada is recorded at frequency rank #18,435, classified as aparticiple, pronounced [al̪t̪eˈɾað̞a]. alterna is at rank #17,331, tagged as averb, pronounced [al̪ˈt̪eɾna].

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 35766, this pair ranks #184,282 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alterada vs alterna

Shared letters: aelrt. Private to "alterada": d. Private to "alterna": n.

"alterada" · 8 letters · shape VCCVCVCV  ·  "alterna" · 7 letters · shape VCCVCCV

Known mistypes of this pair

  • alteradaaletrada · allterada · altearda · alteraad · alteradda · alterdaa · alterrada · altreada
  • alternaaletrna · allterna · altenra · alternna · alterrna · altrena · altterna · atlerna

Frequently Asked Questions

Do "alterada" and "alterna" mean the same thing in a sentence?
No - they are not even the same part of speech. "alterada" is a participle and "alterna" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "alterada" or "alterna"?
"alterna" is the more common of the two: it sits at frequency rank #17,331 in our Spanish list, against #18,435 for "alterada". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "alterada" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "alterna" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #184,282 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "alterada" and "alterna" also get mixed up with nearby pairs, the highest-scored neighbour is "alterada vs aterrada". 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 #184,282 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list