cuvscujoWhat's the difference?

Quick tell: cu is a noun, cujo is a pronoun, so they fill different roles in a sentence.

Which to use

“cu” is a noun and “cujo” is a pronoun - they look or sound alike but fill different roles in a sentence.

#4,716
“cu” frequency rank
#1,638
“cujo” frequency rank
6354
confusion score

Side-by-Side Comparison

Feature cu cujo
Definition extremidade do intestino grosso; ânus relaciona dois substantivos, um antecedente e outro consequente, sendo este último possuidor de algo (qualidade, condição, sentimento, ser etc.) designado pelo primeiro; equivale a de que, de quem, do/da qual, dos/das quais

Letter map: cu vs cujo

Shared letters muted; letters that set cu and cujo apart highlighted. Shared run: 2.

2 ch
cu
4 ch
cujo

Grammar separator: cu vs cujo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cu is anoun and cujoapronoun. On the page they differ by 2 extra letter(s) - “cu” sits inside “cujo”. Our composite confusion score for this pair is 6354, derived from the frequency rank of both members and their visual similarity.

cu is recorded at frequency rank #4,716, classified as anoun, pronounced /ˈku/. cujo is at rank #1,638, tagged as apron.

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 6354, this pair ranks #68,090 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cu vs cujo

Shared letters: cu. Private to "cu": -. Private to "cujo": jo.

"cu" · 2 letters · shape CV  ·  "cujo" · 4 letters · shape CVCV

Known mistypes of this pair

  • cujoccujo · cjuo · cujjo · cuoj · ucjo

Frequently Asked Questions

Is swapping "cu" for "cujo" ever safe?
No - they are not even the same part of speech. "cu" is a noun and "cujo" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "cu" vs "cujo" - which ranks higher?
"cujo" is the more common of the two: it sits at frequency rank #1,638 in our Portuguese list, against #4,716 for "cu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "cu" vs "cujo" is on the table, pick a follow-up below.

  • Full dictionary entry for "cu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cujo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #68,090 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cu" and "cujo" also get mixed up with nearby pairs, the highest-scored neighbour is "chau vs cu". 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 #68,090 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