Which to use
“ch” is a character and “cu” is a noun - they look or sound alike but fill different roles in a sentence.
- #10,997
- “ch” frequency rank
- #11,200
- “cu” frequency rank
- 22197
- confusion score
Side-by-Side Comparison
| Feature | ch | cu |
|---|---|---|
| Definition | Dígrafo que fue considerado cuarta letra del alfabeto español entre 1803 y 2010. Su nombre es che y generalmente representa un sonido consonante africado postalveolar sordo. | Nombre de la letra q, Q |
Where the eye mixes ch and cu
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between ch and cu
These two trip readers on the page rather than in the ear: ch is [ˈt͡ʃe] while cu is [ˈku]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - h in “ch” becomes u in “cu”, and the parts of speech differ too (character vs noun), which is usually the fastest check. Our composite confusion score for this pair is 22197, derived from the frequency rank of both members and their visual similarity.
ch is recorded at frequency rank #10,997, classified as acharacter, pronounced [ˈt͡ʃe]. 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 22197, this pair ranks #251,462 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ch vs cu
Shared letters: c. Private to "ch": h. Private to "cu": u.
"ch" · 2 letters · shape CC · "cu" · 2 letters · shape CV
Frequently Asked Questions
Do "ch" and "cu" mean the same thing in a sentence?
Frequency check: "ch" vs "cu" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ch" 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 #251,462 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ch" and "cu" also get mixed up with nearby pairs, the highest-scored neighbour is "cu vs cuc". Nearby pair
Confusion rank #251,462 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.