fax vs fou, What's the Difference?

Which to use

“fax” is a noun and “fou” is an adjective - they look or sound alike but fill different roles in a sentence.

#12,419
“fax” frequency rank: #48,244
“fou” frequency rank: 60663
confusion score

Side-by-Side Comparison

Feature	fax	fou
Definition	The hair of the head.	Drunk.

Letter map: fax vs fou

Shared letters muted; letters that set fax and fou apart highlighted. Shared run: 1.

3 ch

fax

3 ch

fou

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fax is anoun and fouanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 60663, derived from the frequency rank of both members and their visual similarity.

fax is recorded at frequency rank #12,419, classified as anoun, pronounced /fæks/. fou is at rank #48,244, tagged as anadj.

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 60663, this pair ranks #98,864 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of fax vs fou

Shared letters: f. Private to "fax": ax. Private to "fou": ou.

"fax" · 3 letters · shape CVC · "fou" · 3 letters · shape CVV

Frequently Asked Questions

Can "fax" and "fou" be used interchangeably?

No - they are not even the same part of speech. "fax" is a noun and "fou" an adjective, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "fax" or "fou"?

"fax" is the more common of the two: it sits at frequency rank #12,419 in our English list, against #48,244 for "fou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.