Which to use
“casi” is an adverb and “chi” is a noun - they look or sound alike but fill different roles in a sentence.
- #221
- “casi” frequency rank
- #9,955
- “chi” frequency rank
- 10176
- confusion score
Side-by-Side Comparison
| Feature | casi | chi |
|---|---|---|
| Definition | Que por poca diferencia no es, que tiene mucha semejanza. | Principio activo que forma parte de todo ser vivo y que se podría traducir como "flujo vital de energía". Es similar a conceptos occidentales como energeia, magnetismo animal, élan vital o energía vital (vitalismo). |
Where the eye mixes casi and chi
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses casi with chi
These two trip readers on the page rather than in the ear: casi is [ˈkasi] while chi is [ˈt͡ʃi]. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 10176, derived from the frequency rank of both members and their visual similarity.
casi is recorded at frequency rank #221, classified as anadv, pronounced [ˈkasi]. chi is at rank #9,955, tagged as anoun, pronounced [ˈt͡ʃi].
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 10176, this pair ranks #299,565 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of casi vs chi
Shared letters: ci. Private to "casi": as. Private to "chi": h.
"casi" · 4 letters · shape CVCV · "chi" · 3 letters · shape CCV
Known mistypes of this pair
- casi ← acsi · caci · cais · cassi · ccasi · csai
Frequently Asked Questions
Can "casi" and "chi" be used interchangeably?
Frequency check: "casi" vs "chi" - 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 "casi" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "chi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #299,565 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "casi" and "chi" also get mixed up with nearby pairs, the highest-scored neighbour is "chi 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 #299,565 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.