caivscyWhat's the difference?

Quick tell: cai is a noun, cy is an adverb, so they fill different roles in a sentence.

Which to use

“cai” is a noun and “cy” is an adverb - they look or sound alike but fill different roles in a sentence.

#46,045
“cai” frequency rank
#27,395
“cy” frequency rank
73440
confusion score

Side-by-Side Comparison

Feature cai cy
Definition Bien, affaire, objet, chose, fortune. Ci.

Where the spellings diverge

Shared letters are muted; the letters that actually set cai and cy apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
cai
2 ch
cy

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cai is anoun and cyanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 73440, derived from the frequency rank of both members and their visual similarity.

cai is recorded at frequency rank #46,045, classified as anoun, pronounced \kaj\. cy is at rank #27,395, tagged as anadv.

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 73440, this pair ranks #40,466 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of cai vs cy

Shared letters: c. Private to "cai": ai. Private to "cy": y.

"cai" · 3 letters · shape CVV  ·  "cy" · 2 letters · shape CV

Frequency comparison

cai#46,045
cy#27,395

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "cai" and "cy" be used interchangeably?
No - they are not even the same part of speech. "cai" is a noun and "cy" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cai" or "cy"?
"cy" is the more common of the two: it sits at frequency rank #27,395 in our French list, against #46,045 for "cai". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering cai vs cy

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “cai”; for an adverb, it's “cy”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “cai” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list