Which to use
“cair” is a verb and “cio” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,522
- “cair” frequency rank
- #22,564
- “cio” frequency rank
- 24086
- confusion score
Side-by-Side Comparison
| Feature | cair | cio |
|---|---|---|
| Definition | dar queda | período de maior apetite sexual e fertilidade de certos animais |
Letter map: cair vs cio
Shared letters muted; letters that set cair and cio apart highlighted. Shared run: 2.
Grammar separator: cair vs cio
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cair is averb and cioanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 24086, derived from the frequency rank of both members and their visual similarity.
cair is recorded at frequency rank #1,522, classified as averb. cio is at rank #22,564, tagged as anoun, pronounced /ˈsi.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 24086, this pair ranks #45,620 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cair vs cio
Shared letters: ci. Private to "cair": ar. Private to "cio": o.
"cair" · 4 letters · shape CVVC · "cio" · 3 letters · shape CVV
Known mistypes of this pair
- cair ← acir · cairr · cari · ccair · ciar
Frequently Asked Questions
Can "cair" and "cio" be used interchangeably?
Frequency check: "cair" vs "cio" - which ranks higher?
Useful next steps
Pair "cair" vs "cio" is on the table, pick a follow-up below.
- Full dictionary entry for "cair" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cio" - compare definitions side by side with the headword page. Word entry
- This pair ranks #45,620 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "cair" and "cio" also get mixed up with nearby pairs, the highest-scored neighbour is "ciao vs cio". 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 #45,620 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.