ceovschiTell them apart

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

Which to use

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

#8,861
“ceo” frequency rank
#10,328
“chi” frequency rank
19189
confusion score

Side-by-Side Comparison

Feature ceo chi
Definition nevoeiro; neblina quem

Letter map: ceo vs chi

Shared letters muted; letters that set ceo and chi apart highlighted. Shared run: 1.

3 ch
ceo
3 ch
chi

Part-of-speech tell for ceo / chi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ceo is anoun and chiapronoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 19189, derived from the frequency rank of both members and their visual similarity.

ceo is recorded at frequency rank #8,861, classified as anoun, pronounced /coː/. chi is at rank #10,328, 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 19189, this pair ranks #51,613 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ceo vs chi

Shared letters: c. Private to "ceo": eo. Private to "chi": hi.

"ceo" · 3 letters · shape CVV  ·  "chi" · 3 letters · shape CCV

Frequently Asked Questions

Do "ceo" and "chi" mean the same thing in a sentence?
No - they are not even the same part of speech. "ceo" is a noun and "chi" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "ceo" or "chi" show up more?
"ceo" is the more common of the two: it sits at frequency rank #8,861 in our Portuguese list, against #10,328 for "chi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "ceo" vs "chi" is on the table, pick a follow-up below.

  • Full dictionary entry for "ceo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "chi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #51,613 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ceo" and "chi" also get mixed up with nearby pairs, the highest-scored neighbour is "chau vs chi". Nearby pair

Confusion rank #51,613 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