autopistasvsautopsiasWhich spelling fits?

Which to use

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

#14,293
“autopistas” frequency rank
#49,446
“autopsias” frequency rank
63739
confusion score

Side-by-Side Comparison

Feature autopistas autopsias
Definition Forma del plural de autopista. Forma del plural de autopsia.

Where the eye mixes autopistas and autopsias

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. autopistas runs 10 letters (VVCVCVCCVC) against autopsias's 9 (VVCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
autopistas
9 ch
autopsias

Why the eye confuses autopistas with autopsias

A purely visual mix-up. autopistas ([awt̪oˈpist̪as]) and autopsias ([awˈt̪opsjas]) 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 63739, derived from the frequency rank of both members and their visual similarity.

autopistas is recorded at frequency rank #14,293, classified as anoun, pronounced [awt̪oˈpist̪as]. autopsias is at rank #49,446, tagged as anoun, pronounced [awˈt̪opsjas].

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 63739, this pair ranks #47,782 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of autopistas vs autopsias

Shared letters: aiopstu. Private to "autopistas": -. Private to "autopsias": -.

"autopistas" · 10 letters · shape VVCVCVCCVC  ·  "autopsias" · 9 letters · shape VVCVCCVVC

Known mistypes of this pair

  • autopistas ← atuopistas · auotpistas · autoipstas · autopisats · autopisstas · autopistass · autopistsa · autopisttas
  • autopsias ← atuopsias · auotpsias · autopcias · autopisas · autoppsias · autopsais · autopsiass · autopsisa

Frequently Asked Questions

Can "autopistas" and "autopsias" be used interchangeably?
No. They are said differently ([awt̪oˈpist̪as] versus [awˈt̪opsjas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "autopistas" or "autopsias" show up more?
"autopistas" is the more common of the two: it sits at frequency rank #14,293 in our Spanish list, against #49,446 for "autopsias". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "autopistas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "autopsias" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #47,782 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "autopistas" and "autopsias" also get mixed up with nearby pairs, the highest-scored neighbour is "autopsia vs autopsias". 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 #47,782 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