Fax vs fil, What's the Difference?

Which to use

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

#15,379
“Fax” frequency rank: #1,263
“fil” frequency rank: 16642
confusion score

Side-by-Side Comparison

Feature	Fax	fil
Definition	Télécopieur, téléfax, fax, appareil permettant la numérisation, la transmission, la réception, et l’impression du facsimilé.	Petite partie longue et déliée qu’on détache de l’écorce du chanvre, du lin, etc.

Where the eye mixes Fax and fil

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

Fax

3 ch

fil

Why the eye confuses Fax with fil

A purely visual mix-up. Fax (\faks\) and fil (\fil\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 16642, derived from the frequency rank of both members and their visual similarity.

Fax is recorded at frequency rank #15,379, classified as anoun, pronounced \faks\. fil is at rank #1,263, tagged as anoun, pronounced \fil\.

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 16642, this pair ranks #386,895 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Fax vs fil

Shared letters: f. Private to "Fax": ax. Private to "fil": il.

"Fax" · 3 letters · shape CVC · "fil" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "Fax" for "fil" ever safe?

No. They are said differently (\faks\ versus \fil\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

In ordinary French text, does "Fax" or "fil" show up more?

"fil" is the more common of the two: it sits at frequency rank #1,263 in our French list, against #15,379 for "Fax". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

Full dictionary entry for "Fax" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "fil" - compare definitions side by side with the headword page. Word entry
This pair ranks #386,895 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"Fax" and "fil" also get mixed up with nearby pairs, the highest-scored neighbour is "Fax vs Fee". Nearby pair

Confusion rank #386,895 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.