co vs CRS, What's the Difference?

Which to use

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

#1,856
“co” frequency rank: #12,348
“CRS” frequency rank: 14204
confusion score

Side-by-Side Comparison

Feature	co	CRS
Definition	Connexion.	Variante orthographique de C.R.S.

Where the eye mixes co and CRS

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

2 ch

3 ch

CRS

Why the eye confuses co with CRS

A purely visual mix-up. co (\ko\) and CRS (\se.ɛ.ʁɛs\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 14204, derived from the frequency rank of both members and their visual similarity.

co is recorded at frequency rank #1,856, classified as anoun, pronounced \ko\. CRS is at rank #12,348, tagged as anoun, pronounced \se.ɛ.ʁɛs\.

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 14204, this pair ranks #397,714 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of co vs CRS

Shared letters: c. Private to "co": o. Private to "CRS": rs.

"co" · 2 letters · shape CV · "CRS" · 3 letters · shape CCC

Frequently Asked Questions

Is swapping "co" for "CRS" ever safe?

No. They are said differently (\ko\ versus \se.ɛ.ʁɛs\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "co" or "CRS"?

"co" is the more common of the two: it sits at frequency rank #1,856 in our French list, against #12,348 for "CRS". 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 "co" and "CRS" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "co" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "CRS" - compare definitions side by side with the headword page. Word entry
This pair ranks #397,714 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"co" and "CRS" also get mixed up with nearby pairs, the highest-scored neighbour is "ciro vs CRS". Nearby pair

Confusion rank #397,714 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.