CaseyvscasosConfusable pair

Quick tell: Casey is a name, casos is a noun, so they fill different roles in a sentence.

Which to use

“Casey” is a name and “casos” is a noun - they look or sound alike but fill different roles in a sentence.

#22,597
“Casey” frequency rank
#466
“casos” frequency rank
23063
confusion score

Side-by-Side Comparison

Feature Casey casos
Definition Apellido. Forma del plural de caso.

Where the eye mixes Casey and casos

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
Casey
5 ch
casos

Visual trap between Casey and casos

These two trip readers on the page rather than in the ear: Casey is /ˈkeɪsi/ while casos is [ˈkasos]. 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 (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23063, derived from the frequency rank of both members and their visual similarity.

Casey is recorded at frequency rank #22,597, classified as aname, pronounced /ˈkeɪsi/. casos is at rank #466, tagged as anoun, pronounced [ˈkasos].

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 23063, this pair ranks #247,546 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Casey vs casos

Shared letters: acs. Private to "Casey": ey. Private to "casos": o.

"Casey" · 5 letters · shape CVCVV  ·  "casos" · 5 letters · shape CVCVC

Known mistypes of this pair

  • Caseyacsey · cacey · caesy · caseyy · cassey · casye · ccasey · csaey
  • casosacsos · caoss · casoss · cassos · ccasos · csaos

Frequently Asked Questions

Can "Casey" and "casos" be used interchangeably?
No - they are not even the same part of speech. "Casey" is a name and "casos" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Casey" vs "casos" - which ranks higher?
"casos" is the more common of the two: it sits at frequency rank #466 in our Spanish list, against #22,597 for "Casey". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "Casey" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "casos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #247,546 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "Casey" and "casos" also get mixed up with nearby pairs, the highest-scored neighbour is "camel vs Casey". 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 #247,546 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