devsdesWhat's the difference?

Quick tell: de is a preposition, des is an article, so they fill different roles in a sentence.

Which to use

“de” is a preposition and “des” is an article - they look or sound alike but fill different roles in a sentence.

#1
“de” frequency rank
#10
“des” frequency rank
11
confusion score

Side-by-Side Comparison

Feature de des
Definition Marque un ablatif. Mot indiquant la provenance, l’origine ^([note 1]). Article indéfini du pluriel. C’est ainsi le pluriel de un ou une.

Where the eye mixes de and des

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

2 ch
de
3 ch
des

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: de is \də\ while des is \de\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “de” sits inside “des”, and the parts of speech differ too (preposition vs article), which is usually the fastest check. Our composite confusion score for this pair is 11, derived from the frequency rank of both members and their visual similarity.

de is recorded at frequency rank #1, classified as aprep, pronounced \də\. des is at rank #10, tagged as anarticle, pronounced \de\.

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 11, this pair ranks #440,167 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of de vs des

Shared letters: de. Private to "de": -. Private to "des": s.

"de" · 2 letters · shape CV  ·  "des" · 3 letters · shape CVC

Frequently Asked Questions

Can "de" and "des" be used interchangeably?
No - they are not even the same part of speech. "de" is a preposition and "des" an article, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "de" or "des"?
"de" is the more common of the two: it sits at frequency rank #1 in our French list, against #10 for "des". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list