fauxvsfusTell them apart

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

Which to use

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

#920
“faux” frequency rank
#19,029
“fus” frequency rank
19949
confusion score

Side-by-Side Comparison

Feature faux fus
Definition Qui n’est pas conforme, ou qui ne se conforme pas à la réalité. Quand il s’agit des idées et des sentiments, et de leur expression, il signifie que ces idées, ces sentiments ou leur expression sont contraires à la réalité par erreur ou par imposture. Première personne du singulier du passé simple de être.

Where the eye mixes faux and fus

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

4 ch
faux
3 ch
fus

Why the eye confuses faux with fus

These two trip readers on the page rather than in the ear: faux is \fo\ while fus is \fy\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 19949, derived from the frequency rank of both members and their visual similarity.

faux is recorded at frequency rank #920, classified as anadj, pronounced \fo\. fus is at rank #19,029, tagged as averb, pronounced \fy\.

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 19949, this pair ranks #370,717 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of faux vs fus

Shared letters: fu. Private to "faux": ax. Private to "fus": s.

"faux" · 4 letters · shape CVVC  ·  "fus" · 3 letters · shape CVC

Known mistypes of this pair

  • fauxafux · fauxx · faxu · ffaux · fuax

Frequently Asked Questions

Can "faux" and "fus" be used interchangeably?
No - they are not even the same part of speech. "faux" is an adjective and "fus" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "faux" vs "fus" - which ranks higher?
"faux" is the more common of the two: it sits at frequency rank #920 in our French list, against #19,029 for "fus". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "faux" and "fus" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "faux" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #370,717 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "faux" and "fus" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fus". 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 #370,717 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