Which to use
“caer” is a verb and “cas” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,628
- “caer” frequency rank
- #19,656
- “cas” frequency rank
- 21284
- confusion score
Side-by-Side Comparison
| Feature | caer | cas |
|---|---|---|
| Definition | Moverse de arriba hacia abajo por efecto de la fuerza de gravedad. | Caso. |
Where the eye mixes caer and cas
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: caer vs cas
These two trip readers on the page rather than in the ear: caer is [kaˈeɾ] while cas is [ˈkas]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 21284, derived from the frequency rank of both members and their visual similarity.
caer is recorded at frequency rank #1,628, classified as averb, pronounced [kaˈeɾ]. cas is at rank #19,656, tagged as anoun, pronounced [ˈkas].
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 21284, this pair ranks #255,597 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caer vs cas
Shared letters: ac. Private to "caer": er. Private to "cas": s.
"caer" · 4 letters · shape CVVC · "cas" · 3 letters · shape CVC
Known mistypes of this pair
- caer ← caerr · ccaer · cear
Frequently Asked Questions
Can "caer" and "cas" be used interchangeably?
Which is more common, "caer" or "cas"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "caer" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #255,597 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "caer" and "cas" also get mixed up with nearby pairs, the highest-scored neighbour is "cas vs cuc". 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 #255,597 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.