feivsfélinTell them apart

Quick tell: fei is a noun, félin is an adjective, so they fill different roles in a sentence.

Which to use

“fei” is a noun and “félin” is an adjective - they look or sound alike but fill different roles in a sentence.

#31,027
“fei” frequency rank
#27,819
“félin” frequency rank
58846
confusion score

Side-by-Side Comparison

Feature fei félin
Definition Variante de foi Qui se rapporte au chat ou aux félidés.

Where the eye mixes fei and félin

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. fei runs 3 letters (CVV) against félin's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
fei
5 ch
félin

Why the eye confuses fei with félin

These two trip readers on the page rather than in the ear: fei is \fei̯\ while félin is \fe.lɛ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 58846, derived from the frequency rank of both members and their visual similarity.

fei is recorded at frequency rank #31,027, classified as anoun, pronounced \fei̯\. félin is at rank #27,819, tagged as anadj, pronounced \fe.lɛ̃\.

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 58846, this pair ranks #106,544 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of fei vs félin

Shared letters: fi. Private to "fei": e. Private to "félin": lné.

"fei" · 3 letters · shape CVV  ·  "félin" · 5 letters · shape CVCVC

Frequently Asked Questions

Do "fei" and "félin" mean the same thing in a sentence?
No - they are not even the same part of speech. "fei" is a noun and "félin" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "fei" vs "félin" - which ranks higher?
"félin" is the more common of the two: it sits at frequency rank #27,819 in our French list, against #31,027 for "fei". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "fei" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "félin" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #106,544 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fei" and "félin" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fei". Nearby pair

Confusion rank #106,544 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