CAFvscaiWhat's the difference?

Which to use

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

#10,286
“CAF” frequency rank
#46,045
“cai” frequency rank
56331
confusion score

Side-by-Side Comparison

Feature CAF cai
Definition Caisse d’allocations familiales. Bien, affaire, objet, chose, fortune.

Where the eye mixes CAF and cai

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

3 ch
CAF
3 ch
cai

Visual trap between CAF and cai

A purely visual mix-up. CAF (\kaf\) and cai (\kaj\) 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 a single letter - f in “CAF” becomes i in “cai”. Our composite confusion score for this pair is 56331, derived from the frequency rank of both members and their visual similarity.

CAF is recorded at frequency rank #10,286, classified as anoun, pronounced \kaf\. cai is at rank #46,045, tagged as anoun, pronounced \kaj\.

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 56331, this pair ranks #121,752 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of CAF vs cai

Shared letters: ac. Private to "CAF": f. Private to "cai": i.

"CAF" · 3 letters · shape CVC  ·  "cai" · 3 letters · shape CVV

Frequently Asked Questions

Can "CAF" and "cai" be used interchangeably?
No. They are said differently (\kaf\ versus \kaj\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "CAF" vs "cai" - which ranks higher?
"CAF" is the more common of the two: it sits at frequency rank #10,286 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.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "CAF" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cai" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #121,752 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "CAF" and "cai" also get mixed up with nearby pairs, the highest-scored neighbour is "cai vs CCE". Nearby pair

Confusion rank #121,752 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