Which to use
“ch” is a character and “cis” is an adjective - they look or sound alike but fill different roles in a sentence.
- #10,997
- “ch” frequency rank
- #20,606
- “cis” frequency rank
- 31603
- confusion score
Side-by-Side Comparison
| Feature | ch | cis |
|---|---|---|
| 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. | Cisgénero. |
Where the eye mixes ch and cis
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: ch vs cis
These two trip readers on the page rather than in the ear: ch is [ˈt͡ʃe] while cis is [ˈsis]. 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 (character vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 31603, 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]. cis is at rank #20,606, tagged as anadj, pronounced [ˈsis].
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 31603, this pair ranks #206,238 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ch vs cis
Shared letters: c. Private to "ch": h. Private to "cis": is.
"ch" · 2 letters · shape CC · "cis" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "ch" for "cis" ever safe?
Frequency check: "ch" vs "cis" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ch" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #206,238 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ch" and "cis" also get mixed up with nearby pairs, the highest-scored neighbour is "cis vs cuc". Nearby pair
Confusion rank #206,238 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.