costosasvscostososWhat's the difference?

Which to use

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

#24,447
“costosas” frequency rank
#22,635
“costosos” frequency rank
47082
confusion score

Side-by-Side Comparison

Feature costosas costosos
Definition Forma del femenino plural de costoso. Forma del plural de costoso.

Where the eye mixes costosas and costosos

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. costosas and costosos follow the identical consonant-vowel pattern (CVCCVCVC). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
costosas
8 ch
costosos

Why the eye confuses costosas with costosos

A purely visual mix-up. costosas ([kosˈt̪osas]) and costosos ([kosˈt̪osos]) 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 a single letter - a in “costosas” becomes o in “costosos”. Our composite confusion score for this pair is 47082, derived from the frequency rank of both members and their visual similarity.

costosas is recorded at frequency rank #24,447, classified as anadj, pronounced [kosˈt̪osas]. costosos is at rank #22,635, tagged as anadj, pronounced [kosˈt̪osos].

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 47082, this pair ranks #122,042 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of costosas vs costosos

Shared letters: cost. Private to "costosas": a. Private to "costosos": -.

"costosas" · 8 letters · shape CVCCVCVC  ·  "costosos" · 8 letters · shape CVCCVCVC

Known mistypes of this pair

  • costosasccostosas · cosotsas · cosstosas · costoass · costosass · costossas · costsoas · costtosas
  • costososccostosos · cosotsos · cosstosos · costooss · costososs · costossos · costsoos · costtosos

Frequently Asked Questions

Do "costosas" and "costosos" mean the same thing in a sentence?
No. They are said differently ([kosˈt̪osas] versus [kosˈt̪osos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "costosas" or "costosos"?
"costosos" is the more common of the two: it sits at frequency rank #22,635 in our Spanish list, against #24,447 for "costosas". 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 "costosas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "costosos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #122,042 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "costosas" and "costosos" also get mixed up with nearby pairs, the highest-scored neighbour is "costosas vs costuras". 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 #122,042 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