cat vs cu, What's the Difference?

Which to use

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

#7,740
“cat” frequency rank: #4,716
“cu” frequency rank: 12456
confusion score

Side-by-Side Comparison

Feature	cat	cu
Definition	gato (Felis catus)	extremidade do intestino grosso; ânus

Where the eye mixes cat and cu

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

3 ch

cat

2 ch

Why the eye confuses cat with cu

A purely visual mix-up. cat (/kʰaʰt̪/) and cu (/ˈku/) 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 1 letter(s) in length. Our composite confusion score for this pair is 12456, 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/. cu is at rank #4,716, tagged as anoun, pronounced /ˈku/.

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 12456, this pair ranks #60,118 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cat vs cu

Shared letters: c. Private to "cat": at. Private to "cu": u.

"cat" · 3 letters · shape CVC · "cu" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "cat" for "cu" ever safe?

No. They are said differently (/kʰaʰt̪/ versus /ˈku/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "cat" or "cu"?

"cu" is the more common of the two: it sits at frequency rank #4,716 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

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

Full dictionary entry for "cat" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "cu" - compare definitions side by side with the headword page. Word entry
This pair ranks #60,118 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"cat" and "cu" also get mixed up with nearby pairs, the highest-scored neighbour is "cat vs chau". Nearby pair

Confusion rank #60,118 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.