fax vs fel, What's the Difference?

Which to use

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

#14,370
“fax” frequency rank: #42,931
“fel” frequency rank: 57301
confusion score

Side-by-Side Comparison

Feature	fax	fel
Definition	aparelho transmissor e receptor de documentos em fac-símile	bile, bílis

Where the eye mixes fax and fel

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. fax and fel follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch

fax

3 ch

fel

Visual trap between fax and fel

A purely visual mix-up. fax (/ˈfaks/) and fel (/ˈfɛɫ/) 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 57301, derived from the frequency rank of both members and their visual similarity.

fax is recorded at frequency rank #14,370, classified as anoun, pronounced /ˈfaks/. fel is at rank #42,931, tagged as anoun, pronounced /ˈfɛɫ/.

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 57301, this pair ranks #9,428 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of fax vs fel

Shared letters: f. Private to "fax": ax. Private to "fel": el.

"fax" · 3 letters · shape CVC · "fel" · 3 letters · shape CVC

Frequently Asked Questions

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

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

In ordinary Portuguese text, does "fax" or "fel" show up more?

"fax" is the more common of the two: it sits at frequency rank #14,370 in our Portuguese list, against #42,931 for "fel". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "fax" and "fel" 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 "fel" - compare definitions side by side with the headword page. Word entry
This pair ranks #9,428 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"fax" and "fel" also get mixed up with nearby pairs, the highest-scored neighbour is "fel vs fern". Nearby pair

Confusion rank #9,428 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.