fitvsfuiWhat's the difference?

Quick tell: fit is a adjective, fui is a verb, so they fill different roles in a sentence.

Which to use

“fit” is an adjective and “fui” is a verb - they look or sound alike but fill different roles in a sentence.

#2,175
“fit” frequency rank
#9,318
“fui” frequency rank
11493
confusion score

Side-by-Side Comparison

Feature fit fui
Definition En bonne santé, en pleine forme. Participe passé masculin singulier de fuir.

Where the eye mixes fit and fui

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

3 ch
fit
3 ch
fui

Visual trap between fit and fui

These two trip readers on the page rather than in the ear: fit is \fit\ while fui is \fɥi\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 11493, derived from the frequency rank of both members and their visual similarity.

fit is recorded at frequency rank #2,175, classified as anadj, pronounced \fit\. fui is at rank #9,318, tagged as averb, pronounced \fɥi\.

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 11493, this pair ranks #408,940 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fit vs fui

Shared letters: fi. Private to "fit": t. Private to "fui": u.

"fit" · 3 letters · shape CVC  ·  "fui" · 3 letters · shape CVV

Frequently Asked Questions

Do "fit" and "fui" mean the same thing in a sentence?
No - they are not even the same part of speech. "fit" is an adjective and "fui" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fit" or "fui"?
"fit" is the more common of the two: it sits at frequency rank #2,175 in our French list, against #9,318 for "fui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fit" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #408,940 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fit" and "fui" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fui". Nearby pair

Confusion rank #408,940 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