acasovsatrasoTell them apart

Which to use

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

#1,798
“acaso” frequency rank
#17,350
“atraso” frequency rank
19148
confusion score

Side-by-Side Comparison

Feature acaso atraso
Definition Casualidad, suceso imprevisto o fortuito. Acción o efecto de atrasar y atrasarse.

Where the eye mixes acaso and atraso

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
acaso
6 ch
atraso

Visual trap between acaso and atraso

A purely visual mix-up. acaso ([aˈkaso]) and atraso ([aˈt̪ɾaso]) 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 19148, derived from the frequency rank of both members and their visual similarity.

acaso is recorded at frequency rank #1,798, classified as anoun, pronounced [aˈkaso]. atraso is at rank #17,350, tagged as anoun, pronounced [aˈt̪ɾaso].

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 19148, this pair ranks #264,974 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of acaso vs atraso

Shared letters: aos. Private to "acaso": c. Private to "atraso": rt.

"acaso" · 5 letters · shape VCVCV  ·  "atraso" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • acasoaacso · acaos · acasso · accaso · acsao · caaso
  • atrasoartaso · atarso · atraos · atrasso · atrraso · atrsao · attraso · taraso

Frequently Asked Questions

Can "acaso" and "atraso" be used interchangeably?
No. They are said differently ([aˈkaso] versus [aˈt̪ɾaso]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "acaso" or "atraso"?
"acaso" is the more common of the two: it sits at frequency rank #1,798 in our Spanish list, against #17,350 for "atraso". 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 "acaso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "atraso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #264,974 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "acaso" and "atraso" also get mixed up with nearby pairs, the highest-scored neighbour is "Arras vs atraso". 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 #264,974 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