costvsCsConfusable pair

Which to use

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

#14,234
“cost” frequency rank
#10,681
“Cs” frequency rank
24915
confusion score

Side-by-Side Comparison

Feature cost Cs
Definition Coût. Pluriel de C.

Where the eye mixes cost and Cs

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
cost
2 ch
Cs

Why the eye confuses cost with Cs

A purely visual mix-up. cost (\kɒst\) and Cs (\tseːs\) 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 2 letter(s) in length. Our composite confusion score for this pair is 24915, derived from the frequency rank of both members and their visual similarity.

cost is recorded at frequency rank #14,234, classified as anoun, pronounced \kɒst\. Cs is at rank #10,681, tagged as anoun, pronounced \tseːs\.

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 24915, this pair ranks #343,852 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cost vs Cs

Shared letters: cs. Private to "cost": ot. Private to "Cs": -.

"cost" · 4 letters · shape CVCC  ·  "Cs" · 2 letters · shape CC

Known mistypes of this pair

  • costccost · cosst · costt · cots · csot · ocst

Frequently Asked Questions

Is swapping "cost" for "Cs" ever safe?
No. They are said differently (\kɒst\ versus \tseːs\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "cost" vs "Cs" - which ranks higher?
"Cs" is the more common of the two: it sits at frequency rank #10,681 in our French list, against #14,234 for "cost". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "cost" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Cs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #343,852 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cost" and "Cs" also get mixed up with nearby pairs, the highest-scored neighbour is "coon vs cost". 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 #343,852 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