Which to use
“cair” is a verb and “casa” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,522
- “cair” frequency rank
- #91
- “casa” frequency rank
- 1613
- confusion score
Side-by-Side Comparison
| Feature | cair | casa |
|---|---|---|
| Definition | dar queda | construção que serve de moradia |
Letter map: cair vs casa
Shared letters muted; letters that set cair and casa apart highlighted. Shared run: 2.
Grammar separator: cair vs casa
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cair is averb and casaanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 1613, derived from the frequency rank of both members and their visual similarity.
cair is recorded at frequency rank #1,522, classified as averb. casa is at rank #91, tagged as anoun, pronounced /ˈka.zɐ/.
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 1613, this pair ranks #73,920 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cair vs casa
Shared letters: ac. Private to "cair": ir. Private to "casa": s.
"cair" · 4 letters · shape CVVC · "casa" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Do "cair" and "casa" mean the same thing in a sentence?
Frequency check: "cair" vs "casa" - which ranks higher?
Useful next steps
Pair "cair" vs "casa" 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 "casa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #73,920 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "cair" and "casa" also get mixed up with nearby pairs, the highest-scored neighbour is "cair vs coagir". 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 #73,920 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.