CEIvschuWhich spelling fits?

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

Which to use

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

#29,625
“CEI” frequency rank
#24,559
“chu” frequency rank
54184
confusion score

Side-by-Side Comparison

Feature CEI chu
Definition Communauté des États Indépendants (português: Comunidade dos Estados Independentes, CEI) particípio passado do verbo choir

Where the eye mixes CEI and chu

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

3 ch
CEI
3 ch
chu

Visual trap between CEI and chu

These two trip readers on the page rather than in the ear: CEI is /se.ø.i/ while chu is /ʃy/, /ʃːy/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (abbrev vs verb), which is usually the fastest check. Our composite confusion score for this pair is 54184, derived from the frequency rank of both members and their visual similarity.

CEI is recorded at frequency rank #29,625, classified as anabbrev, pronounced /se.ø.i/. chu is at rank #24,559, tagged as averb, pronounced /ʃy/, /ʃːy/.

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 54184, this pair ranks #11,467 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of CEI vs chu

Shared letters: c. Private to "CEI": ei. Private to "chu": hu.

"CEI" · 3 letters · shape CVV  ·  "chu" · 3 letters · shape CCV

Frequently Asked Questions

Is swapping "CEI" for "chu" ever safe?
No - they are not even the same part of speech. "CEI" is an abbrev and "chu" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "CEI" or "chu"?
"chu" is the more common of the two: it sits at frequency rank #24,559 in our Portuguese list, against #29,625 for "CEI". 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 "CEI" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "chu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #11,467 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "CEI" and "chu" also get mixed up with nearby pairs, the highest-scored neighbour is "chau vs chu". Nearby pair

Confusion rank #11,467 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