Which to use
“caí” is a verb and “cu” is a noun - they look or sound alike but fill different roles in a sentence.
- #11,538
- “caí” frequency rank
- #11,200
- “cu” frequency rank
- 22738
- confusion score
Side-by-Side Comparison
| Feature | caí | cu |
|---|---|---|
| Definition | Primera persona del singular (yo) del pretérito perfecto simple de indicativo de caer o de caerse. | Nombre de la letra q, Q |
Where the eye mixes caí and cu
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: caí vs cu
These two trip readers on the page rather than in the ear: caí is [kaˈi] while cu is [ˈku]. 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 22738, derived from the frequency rank of both members and their visual similarity.
caí is recorded at frequency rank #11,538, classified as averb, pronounced [kaˈi]. cu is at rank #11,200, tagged as anoun, pronounced [ˈku].
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 22738, this pair ranks #248,952 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caí vs cu
Shared letters: c. Private to "caí": aí. Private to "cu": u.
"caí" · 3 letters · shape CVV · "cu" · 2 letters · shape CV
Frequently Asked Questions
Can "caí" and "cu" be used interchangeably?
Which is more common, "caí" or "cu"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "caí" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #248,952 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "caí" and "cu" also get mixed up with nearby pairs, the highest-scored neighbour is "caí vs cuc". Nearby pair
Confusion rank #248,952 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.