stavsstoWhat's the difference?

Quick tell: sta is a adjective, sto is a num, so they fill different roles in a sentence.

Which to use

“sta” is an adjective and “sto” is a num - they look or sound alike but fill different roles in a sentence.

#14,015
“sta” frequency rank
#36,304
“sto” frequency rank
50319
confusion score

Side-by-Side Comparison

Feature sta sto
Definition Forma del femenino de sto: «esta». Ciento.

Where the eye mixes sta and sto

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
sta
3 ch
sto

Look-alike desk: sta vs sto

These two trip readers on the page rather than in the ear: sta is /ˈsta/ while sto is [ˈsto]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “sta” becomes o in “sto”, and the parts of speech differ too (adjective vs num), which is usually the fastest check. Our composite confusion score for this pair is 50319, derived from the frequency rank of both members and their visual similarity.

sta is recorded at frequency rank #14,015, classified as anadj, pronounced /ˈsta/. sto is at rank #36,304, tagged as anum, pronounced [ˈsto].

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 50319, this pair ranks #103,840 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sta vs sto

Shared letters: st. Private to "sta": a. Private to "sto": o.

"sta" · 3 letters · shape CCV  ·  "sto" · 3 letters · shape CCV

Frequently Asked Questions

Can "sta" and "sto" be used interchangeably?
No - they are not even the same part of speech. "sta" is an adjective and "sto" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sta" or "sto"?
"sta" is the more common of the two: it sits at frequency rank #14,015 in our Spanish list, against #36,304 for "sto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "sta" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #103,840 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sta" and "sto" also get mixed up with nearby pairs, the highest-scored neighbour is "stem vs sto". Nearby pair

Confusion rank #103,840 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