diffvsdixTell them apart

Which to use

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

#25,968
“diff” frequency rank
#581
“dix” frequency rank
26549
confusion score

Side-by-Side Comparison

Feature diff dix
Definition Difficile. Neuf plus un, adjectif numéral cardinal correspondant au nombre 10.

Where the eye mixes diff and dix

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
diff
3 ch
dix

Why the eye confuses diff with dix

A purely visual mix-up. diff (\dif\) and dix (\dis\) 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 1 letter(s) in length. Our composite confusion score for this pair is 26549, derived from the frequency rank of both members and their visual similarity.

diff is recorded at frequency rank #25,968, classified as anadj, pronounced \dif\. dix is at rank #581, tagged as anadj, pronounced \dis\.

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 26549, this pair ranks #334,326 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of diff vs dix

Shared letters: di. Private to "diff": f. Private to "dix": x.

"diff" · 4 letters · shape CVCC  ·  "dix" · 3 letters · shape CVC

Known mistypes of this pair

  • diffddiff · dfif · idff

Frequently Asked Questions

Can "diff" and "dix" be used interchangeably?
No. They are said differently (\dif\ versus \dis\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "diff" or "dix"?
"dix" is the more common of the two: it sits at frequency rank #581 in our French list, against #25,968 for "diff". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "diff" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dix" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #334,326 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "diff" and "dix" also get mixed up with nearby pairs, the highest-scored neighbour is "diez vs diff". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #334,326 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list