denvsduWhat's the difference?

Which to use

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

#9,639
“den” frequency rank
#17
“du” frequency rank
9656
confusion score

Side-by-Side Comparison

Feature den du
Definition Accusatif masculin singulier de der. Une quantité indéfinie de. Note d’usage : Utilisé avec un nom indénombrable.

Where the eye mixes den and du

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

3 ch
den
2 ch
du

Why the eye confuses den with du

A purely visual mix-up. den (\deːn\) and du (\dy\) 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 9656, derived from the frequency rank of both members and their visual similarity.

den is recorded at frequency rank #9,639, classified as anarticle, pronounced \deːn\. du is at rank #17, tagged as anarticle, pronounced \dy\.

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 9656, this pair ranks #415,887 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of den vs du

Shared letters: d. Private to "den": en. Private to "du": u.

"den" · 3 letters · shape CVC  ·  "du" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "den" for "du" ever safe?
No. They are said differently (\deːn\ versus \dy\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "den" or "du"?
"du" is the more common of the two: it sits at frequency rank #17 in our French list, against #9,639 for "den". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "den" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "du" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #415,887 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "den" and "du" also get mixed up with nearby pairs, the highest-scored neighbour is "den vs denim". Nearby pair

Confusion rank #415,887 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