alterarvsalternarWhat's the difference?

Which to use

“alterar” and “alternar” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#10,258
“alterar” frequency rank
#40,631
“alternar” frequency rank
50889
confusion score

Side-by-Side Comparison

Feature alterar alternar
Definition Cambiar la forma, esencia, estructura o composición de algo. Variar las acciones diciendo o haciendo ya unas cosas, ya otras, y repitiéndolas sucesivamente.

Where the spellings diverge

Shared letters are muted; the letters that actually set alterar and alternar apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.

7 ch
alterar
8 ch
alternar

Spelling & Dictionary Insight

A purely visual mix-up. alterar ([al̪t̪eˈɾaɾ]) and alternar ([al̪t̪eɾˈnaɾ]) 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 1 letter(s) in length. Our composite confusion score for this pair is 50889, derived from the frequency rank of both members and their visual similarity.

alterar is recorded at frequency rank #10,258, classified as averb, pronounced [al̪t̪eˈɾaɾ]. alternar is at rank #40,631, tagged as averb, pronounced [al̪t̪eɾˈnaɾ].

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 50889, this pair ranks #100,790 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alterar vs alternar

Shared letters: aelrt. Private to "alterar": -. Private to "alternar": n.

"alterar" · 7 letters · shape VCCVCVC  ·  "alternar" · 8 letters · shape VCCVCCVC

Known mistypes of this pair

  • alteraraletrar · allterar · altearr · alterarr · alterra · alterrar · altrear · altterar
  • alternaraletrnar · allternar · altenrar · alteranr · alternarr · alternnar · alternra · alterrnar

Frequency comparison

alterar#10,258
alternar#40,631

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "alterar" and "alternar" be used interchangeably?
No. They are said differently ([al̪t̪eˈɾaɾ] versus [al̪t̪eɾˈnaɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "alterar" or "alternar"?
"alterar" is the more common of the two: it sits at frequency rank #10,258 in our Spanish list, against #40,631 for "alternar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering alterar vs alternar

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “alterar” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list