chuvscoWhich spelling fits?

Quick tell: chu is a verb, co is a pronoun, so they fill different roles in a sentence.

Which to use

“chu” is a verb and “co” is a pronoun - they look or sound alike but fill different roles in a sentence.

#24,559
“chu” frequency rank
#2,005
“co” frequency rank
26564
confusion score

Side-by-Side Comparison

Feature chu co
Definition particípio passado do verbo choir que

Letter map: chu vs co

Shared letters muted; letters that set chu and co apart highlighted. Shared run: 1.

3 ch
chu
2 ch
co

Part-of-speech tell for chu / co

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: chu is averb and coapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 26564, derived from the frequency rank of both members and their visual similarity.

chu is recorded at frequency rank #24,559, classified as averb, pronounced /ʃy/, /ʃːy/. co is at rank #2,005, 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 26564, this pair ranks #42,581 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of chu vs co

Shared letters: c. Private to "chu": hu. Private to "co": o.

"chu" · 3 letters · shape CCV  ·  "co" · 2 letters · shape CV

Frequently Asked Questions

Can "chu" and "co" be used interchangeably?
No - they are not even the same part of speech. "chu" is a verb and "co" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "chu" or "co"?
"co" is the more common of the two: it sits at frequency rank #2,005 in our Portuguese list, against #24,559 for "chu". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "chu" and "co". Here's where to go from here.

  • Full dictionary entry for "chu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "co" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #42,581 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "chu" and "co" also get mixed up with nearby pairs, the highest-scored neighbour is "chau vs chu". Nearby pair

Confusion rank #42,581 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