abcvsasíWhich spelling fits?

Quick tell: abc is a noun, así is an adverb, so they fill different roles in a sentence.

Which to use

“abc” is a noun and “así” is an adverb - they look or sound alike but fill different roles in a sentence.

#6,973
“abc” frequency rank
#55
“así” frequency rank
7028
confusion score

Side-by-Side Comparison

Feature abc así
Definition Grafía alternativa de abecé. De este modo o forma.

Where the eye mixes abc and así

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
abc
3 ch
así

Why the eye confuses abc with así

These two trip readers on the page rather than in the ear: abc is [aβ̞eˈse] while así is [aˈsi]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 7028, derived from the frequency rank of both members and their visual similarity.

abc is recorded at frequency rank #6,973, classified as anoun, pronounced [aβ̞eˈse]. así is at rank #55, tagged as anadv, pronounced [aˈsi].

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 7028, this pair ranks #309,136 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of abc vs así

Shared letters: a. Private to "abc": bc. Private to "así": .

"abc" · 3 letters · shape VCC  ·  "así" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "abc" for "así" ever safe?
No - they are not even the same part of speech. "abc" is a noun and "así" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "abc" or "así"?
"así" is the more common of the two: it sits at frequency rank #55 in our Spanish list, against #6,973 for "abc". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "abc" and "así" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "abc" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "así" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #309,136 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "abc" and "así" also get mixed up with nearby pairs, the highest-scored neighbour is "abc vs abed". Nearby pair

Confusion rank #309,136 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