Which to use
“fac” and “fas” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,608
- “fac” frequency rank
- #47,890
- “fas” frequency rank
- 51498
- confusion score
Side-by-Side Comparison
| Feature | fac | fas |
|---|---|---|
| Definition | Faculté ; université. | Face, figure, visage. |
Where the eye mixes fac and fas
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses fac with fas
A purely visual mix-up. fac (\fak\) and fas (\ˈfasː\) 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 a single letter - c in “fac” becomes s in “fas”. Our composite confusion score for this pair is 51498, derived from the frequency rank of both members and their visual similarity.
fac is recorded at frequency rank #3,608, classified as anoun, pronounced \fak\. fas is at rank #47,890, tagged as anoun, pronounced \ˈfasː\.
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 51498, this pair ranks #154,541 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fac vs fas
Shared letters: af. Private to "fac": c. Private to "fas": s.
"fac" · 3 letters · shape CVC · "fas" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "fac" for "fas" ever safe?
Which is more common, "fac" or "fas"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "fac" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #154,541 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fac" and "fas" also get mixed up with nearby pairs, the highest-scored neighbour is "fas vs Fee". Nearby pair
Confusion rank #154,541 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.