duvsdyWhat's the difference?

Quick tell: du is a article, dy is an adjective, so they fill different roles in a sentence.

Which to use

“du” is an article and “dy” is an adjective - they look or sound alike but fill different roles in a sentence.

#17
“du” frequency rank
#45,564
“dy” frequency rank
45581
confusion score

Side-by-Side Comparison

Feature du dy
Definition Une quantité indéfinie de. Note d’usage : Utilisé avec un nom indénombrable. Deux.

Same sound, different letters: du vs dy

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 1 letter.

2 ch
du
2 ch
dy

Spelling & Dictionary Insight

Say them out loud and nothing separates them: du and dy carry the same recorded pronunciation, \dy\. Grammar is what tells them apart: one is anarticle, the other anadjective, so most sentences will only accept one of them. They differ by a single letter - u in “du” becomes y in “dy”. Our composite confusion score for this pair is 45581, derived from the frequency rank of both members and their visual similarity.

du is recorded at frequency rank #17, classified as anarticle, pronounced \dy\. dy is at rank #45,564, tagged as anadj, 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 45581, this pair ranks #201,624 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of du vs dy

Shared letters: d. Private to "du": u. Private to "dy": y.

"du" · 2 letters · shape CV  ·  "dy" · 2 letters · shape CV

Frequently Asked Questions

Can "du" and "dy" be used interchangeably?
No - they are not even the same part of speech. "du" is an article and "dy" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "du" or "dy"?
"du" is the more common of the two: it sits at frequency rank #17 in our French list, against #45,564 for "dy". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "du" and "dy". Here's where to go from here.

  • Full dictionary entry for "du" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #201,624 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "du" and "dy" also get mixed up with nearby pairs, the highest-scored neighbour is "dray vs dy". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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

Source: FrequencyWords open word-frequency list