cujovscumWhat's the difference?

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

Which to use

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

#1,638
“cujo” frequency rank
#29,299
“cum” frequency rank
30937
confusion score

Side-by-Side Comparison

Feature cujo cum
Definition 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 usado para indicar algo com duas funções, ou então que tenha se modificado de uma coisa para outra:

Letter map: cujo vs cum

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

4 ch
cujo
3 ch
cum

Grammar separator: cujo vs cum

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cujo is apronoun and cumapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 30937, derived from the frequency rank of both members and their visual similarity.

cujo is recorded at frequency rank #1,638, classified as apron. cum is at rank #29,299, tagged as aprep, pronounced /kʌm/.

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 30937, this pair ranks #37,295 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cujo vs cum

Shared letters: cu. Private to "cujo": jo. Private to "cum": m.

"cujo" · 4 letters · shape CVCV  ·  "cum" · 3 letters · shape CVC

Known mistypes of this pair

  • cujoccujo · cjuo · cujjo · cuoj · ucjo

Frequently Asked Questions

Can "cujo" and "cum" be used interchangeably?
No - they are not even the same part of speech. "cujo" is a pronoun and "cum" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cujo" or "cum"?
"cujo" is the more common of the two: it sits at frequency rank #1,638 in our Portuguese list, against #29,299 for "cum". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "cujo" and "cum".

  • Full dictionary entry for "cujo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #37,295 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cujo" and "cum" also get mixed up with nearby pairs, the highest-scored neighbour is "cham vs cum". 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 #37,295 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