ctsvscupConfusable pair

Which to use

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

#39,736
“cts” frequency rank
#8,225
“cup” frequency rank
47961
confusion score

Side-by-Side Comparison

Feature cts cup
Definition Carats Cup menstruelle.

Where the eye mixes cts and cup

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

3 ch
cts
3 ch
cup

Visual trap between cts and cup

A purely visual mix-up. cts (\ka.ʁa\) and cup (\kœp\) 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 47961, derived from the frequency rank of both members and their visual similarity.

cts is recorded at frequency rank #39,736, classified as anoun, pronounced \ka.ʁa\. cup is at rank #8,225, tagged as anoun, pronounced \kœp\.

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 47961, this pair ranks #182,773 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cts vs cup

Shared letters: c. Private to "cts": st. Private to "cup": pu.

"cts" · 3 letters · shape CCC  ·  "cup" · 3 letters · shape CVC

Frequently Asked Questions

Can "cts" and "cup" be used interchangeably?
No. They are said differently (\ka.ʁa\ versus \kœp\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "cts" or "cup"?
"cup" is the more common of the two: it sits at frequency rank #8,225 in our French list, against #39,736 for "cts". 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 "cts" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cup" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #182,773 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cts" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "CCE vs cts". Nearby pair

Confusion rank #182,773 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