catvscéuWhich spelling fits?

Which to use

“cat” and “céu” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#7,740
“cat” frequency rank
#1,163
“céu” frequency rank
8903
confusion score

Side-by-Side Comparison

Feature cat céu
Definition gato (Felis catus) parte do espaço que parece formar uma abóbada em cima de nossas cabeças; abóbada celeste

Where the eye mixes cat and céu

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

3 ch
cat
3 ch
céu

Why the eye confuses cat with céu

A purely visual mix-up. cat (/kʰaʰt̪/) and céu (/ˈsɛw/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 8903, derived from the frequency rank of both members and their visual similarity.

cat is recorded at frequency rank #7,740, classified as anoun, pronounced /kʰaʰt̪/. céu is at rank #1,163, tagged as anoun, pronounced /ˈsɛw/.

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 8903, this pair ranks #64,711 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cat vs céu

Shared letters: c. Private to "cat": at. Private to "céu": .

"cat" · 3 letters · shape CVC  ·  "céu" · 3 letters · shape CVV

Frequently Asked Questions

Do "cat" and "céu" mean the same thing in a sentence?
No. They are said differently (/kʰaʰt̪/ versus /ˈsɛw/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "cat" vs "céu" - which ranks higher?
"céu" is the more common of the two: it sits at frequency rank #1,163 in our Portuguese list, against #7,740 for "cat". 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 "cat" and "céu" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "cat" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "céu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #64,711 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cat" and "céu" also get mixed up with nearby pairs, the highest-scored neighbour is "cat vs chau". Nearby pair

Confusion rank #64,711 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list