fax vs fib, What's the Difference?

Which to use

“fax” and “fib” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,419
“fax” frequency rank: #43,642
“fib” frequency rank: 56061
confusion score

Side-by-Side Comparison

Feature	fax	fib
Definition	The hair of the head.	A lie, especially one that is more or less inconsequential.

Where the eye mixes fax and fib

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

3 ch

fax

3 ch

fib

Look-alike desk: fax vs fib

A purely visual mix-up. fax (/fæks/) and fib (/fɪb/) 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 56061, 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/. fib is at rank #43,642, tagged as anoun, pronounced /fɪb/.

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 56061, this pair ranks #129,017 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of fax vs fib

Shared letters: f. Private to "fax": ax. Private to "fib": bi.

"fax" · 3 letters · shape CVC · "fib" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "fax" for "fib" ever safe?

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

Frequency check: "fax" vs "fib" - which ranks higher?

"fax" is the more common of the two: it sits at frequency rank #12,419 in our English list, against #43,642 for "fib". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "fax" and "fib" 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 "fib" - compare definitions side by side with the headword page. Word entry
This pair ranks #129,017 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"fax" and "fib" also get mixed up with nearby pairs, the highest-scored neighbour is "fib vs foh". Nearby pair

Confusion rank #129,017 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.