AlteravsásperaTell them apart

Quick tell: Altera is a name, áspera is an adjective, so they fill different roles in a sentence.

Which to use

“Altera” is a name and “áspera” is an adjective - they look or sound alike but fill different roles in a sentence.

#16,752
“Altera” frequency rank
#37,391
“áspera” frequency rank
54143
confusion score

Side-by-Side Comparison

Feature Altera áspera
Definition Apellido. Forma del femenino singular de áspero.

Where the eye mixes Altera and áspera

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

6 ch
Altera
6 ch
áspera

Visual trap between Altera and áspera

These two trip readers on the page rather than in the ear: Altera is [al̪ˈt̪eɾa] while áspera is [ˈaspeɾa]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (name vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 54143, derived from the frequency rank of both members and their visual similarity.

Altera is recorded at frequency rank #16,752, classified as aname, pronounced [al̪ˈt̪eɾa]. áspera is at rank #37,391, tagged as anadj, pronounced [ˈaspeɾa].

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 54143, this pair ranks #84,628 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Altera vs áspera

Shared letters: aer. Private to "Altera": lt. Private to "áspera": psá.

"Altera" · 6 letters · shape VCCVCV  ·  "áspera" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • Alteraalltera · altear · altrea · alttera · atlera · latera

Frequently Asked Questions

Can "Altera" and "áspera" be used interchangeably?
No - they are not even the same part of speech. "Altera" is a name and "áspera" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Altera" vs "áspera" - which ranks higher?
"Altera" is the more common of the two: it sits at frequency rank #16,752 in our Spanish list, against #37,391 for "áspera". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Altera" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "áspera" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #84,628 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "Altera" and "áspera" also get mixed up with nearby pairs, the highest-scored neighbour is "áspera vs aspire". 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 #84,628 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