catsvscausoConfusable pair

Quick tell: cats is a noun, causo is a verb, so they fill different roles in a sentence.

Which to use

“cats” is a noun and “causo” is a verb - they look or sound alike but fill different roles in a sentence.

#47,632
“cats” frequency rank
#31,256
“causo” frequency rank
78888
confusion score

Side-by-Side Comparison

Feature cats causo
Definition Forma del plural de cat. Primera persona del singular (yo) del presente de indicativo de causar.

Where the eye mixes cats and causo

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. cats runs 4 letters (CVCC) against causo's 5 (CVVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
cats
5 ch
causo

Visual trap between cats and causo

These two trip readers on the page rather than in the ear: cats is /kæts/ while causo is [ˈkawso]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 78888, derived from the frequency rank of both members and their visual similarity.

cats is recorded at frequency rank #47,632, classified as anoun, pronounced /kæts/. causo is at rank #31,256, tagged as averb, pronounced [ˈkawso].

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 78888, this pair ranks #13,798 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of cats vs causo

Shared letters: acs. Private to "cats": t. Private to "causo": ou.

"cats" · 4 letters · shape CVCC  ·  "causo" · 5 letters · shape CVVCV

Known mistypes of this pair

  • cats ← acts · catss · catts · ccats · ctas
  • causo ← casuo · cauos · causso · ccauso · cuaso

Frequently Asked Questions

Is swapping "cats" for "causo" ever safe?
No - they are not even the same part of speech. "cats" is a noun and "causo" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cats" or "causo"?
"causo" is the more common of the two: it sits at frequency rank #31,256 in our Spanish list, against #47,632 for "cats". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "cats" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "causo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #13,798 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cats" and "causo" also get mixed up with nearby pairs, the highest-scored neighbour is "catre vs cats". 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 #13,798 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