Which to use
“fas” is a noun and “fus” is a verb - they look or sound alike but fill different roles in a sentence.
- #47,890
- “fas” frequency rank
- #19,029
- “fus” frequency rank
- 66919
- confusion score
Side-by-Side Comparison
| Feature | fas | fus |
|---|---|---|
| Definition | Face, figure, visage. | Première personne du singulier du passé simple de être. |
Where the eye mixes fas and fus
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. fas and fus follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between fas and fus
These two trip readers on the page rather than in the ear: fas is \ˈfasː\ while fus is \fy\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “fas” becomes u in “fus”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 66919, derived from the frequency rank of both members and their visual similarity.
fas is recorded at frequency rank #47,890, classified as anoun, pronounced \ˈfasː\. 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 66919, this pair ranks #65,709 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of fas vs fus
Shared letters: fs. Private to "fas": a. Private to "fus": u.
"fas" · 3 letters · shape CVC · "fus" · 3 letters · shape CVC
Frequently Asked Questions
Can "fas" and "fus" be used interchangeably?
Which is more common, "fas" or "fus"?
What to do next
Eye-level mix-up between "fas" and "fus" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fas" 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 #65,709 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fas" and "fus" also get mixed up with nearby pairs, the highest-scored neighbour is "fas vs Fee". Nearby pair
Confusion rank #65,709 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.