crovscsiWhich spelling fits?

Which to use

“cro” and “csi” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#33,629
“cro” frequency rank
#30,552
“csi” frequency rank
64181
confusion score

Side-by-Side Comparison

Feature cro csi
Definition (Toronto) Camarade. Ksi.

Where the eye mixes cro and csi

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
cro
3 ch
csi

Visual trap between cro and csi

A purely visual mix-up. cro (\kɹəʊ\) and csi (\ˈksi\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 64181, derived from the frequency rank of both members and their visual similarity.

cro is recorded at frequency rank #33,629, classified as anoun, pronounced \kɹəʊ\. csi is at rank #30,552, tagged as anoun, pronounced \ˈksi\.

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 64181, this pair ranks #78,300 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of cro vs csi

Shared letters: c. Private to "cro": or. Private to "csi": is.

"cro" · 3 letters · shape CCV  ·  "csi" · 3 letters · shape CCV

Frequently Asked Questions

Is swapping "cro" for "csi" ever safe?
No. They are said differently (\kɹəʊ\ versus \ˈksi\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "cro" or "csi"?
"csi" is the more common of the two: it sits at frequency rank #30,552 in our French list, against #33,629 for "cro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "cro" and "csi" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "cro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "csi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #78,300 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cro" and "csi" also get mixed up with nearby pairs, the highest-scored neighbour is "ciro vs cro". Nearby pair

Confusion rank #78,300 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list