Which to use
“CEI” is an abbrev and “cheio” is an adjective - they look or sound alike but fill different roles in a sentence.
- #29,625
- “CEI” frequency rank
- #1,424
- “cheio” frequency rank
- 31049
- confusion score
Side-by-Side Comparison
| Feature | CEI | cheio |
|---|---|---|
| Definition | Communauté des États Indépendants (português: Comunidade dos Estados Independentes, CEI) | completamente preenchido; que contém o máximo que pode conter |
Where the eye mixes CEI and cheio
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. CEI runs 3 letters (CVV) against cheio's 5 (CCVVV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses CEI with cheio
These two trip readers on the page rather than in the ear: CEI is /se.ø.i/ while cheio is /ˈʃɐj.u/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (abbrev vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 31049, 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/. cheio is at rank #1,424, tagged as anadj, pronounced /ˈʃɐj.u/.
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 31049, this pair ranks #37,162 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of CEI vs cheio
Shared letters: cei. Private to "CEI": -. Private to "cheio": ho.
"CEI" · 3 letters · shape CVV · "cheio" · 5 letters · shape CCVVV
Known mistypes of this pair
- cheio ← ccheio · cehio · cheoi · chheio · chieo · hceio
Frequently Asked Questions
Is swapping "CEI" for "cheio" ever safe?
Frequency check: "CEI" vs "cheio" - which ranks higher?
After this comparison
Eye-level mix-up between "CEI" and "cheio" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "CEI" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cheio" - compare definitions side by side with the headword page. Word entry
- This pair ranks #37,162 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "CEI" and "cheio" also get mixed up with nearby pairs, the highest-scored neighbour is "CEI vs coin". 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 #37,162 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.