fuivsfuseWhat's the difference?

Which to use

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

#9,318
“fui” frequency rank
#46,778
“fuse” frequency rank
56096
confusion score

Side-by-Side Comparison

Feature fui fuse
Definition Participe passé masculin singulier de fuir. Première personne du singulier de l’indicatif présent du verbe fuser.

Where the eye mixes fui and fuse

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

3 ch
fui
4 ch
fuse

Why the eye confuses fui with fuse

A purely visual mix-up. fui (\fɥi\) and fuse (\fyz\) 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 1 letter(s) in length. Our composite confusion score for this pair is 56096, derived from the frequency rank of both members and their visual similarity.

fui is recorded at frequency rank #9,318, classified as averb, pronounced \fɥi\. fuse is at rank #46,778, tagged as averb, pronounced \fyz\.

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 56096, this pair ranks #123,283 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fui vs fuse

Shared letters: fu. Private to "fui": i. Private to "fuse": es.

"fui" · 3 letters · shape CVV  ·  "fuse" · 4 letters · shape CVCV

Known mistypes of this pair

  • fuseffuse · fsue · fues · fusse · ufse

Frequently Asked Questions

Do "fui" and "fuse" mean the same thing in a sentence?
No. They are said differently (\fɥi\ versus \fyz\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "fui" or "fuse" show up more?
"fui" is the more common of the two: it sits at frequency rank #9,318 in our French list, against #46,778 for "fuse". 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 "fui" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fuse" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #123,283 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fui" and "fuse" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fuse". 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 #123,283 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