défi vs dem, What's the Difference?

Which to use

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

#3,454
“défi” frequency rank: #16,107
“dem” frequency rank: 19561
confusion score

Side-by-Side Comparison

Feature	défi	dem
Definition	Action de défier.	démonstration d’un produit pour en faire la promotion.

Letter map: défi vs dem

Shared letters muted; letters that set défi and dem apart highlighted. Shared run: 1.

4 ch

défi

3 ch

dem

Spelling & dictionary notes on défi vs dem

défi and dem are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19561, derived from the frequency rank of both members and their visual similarity.

défi is recorded at frequency rank #3,454, classified as anoun, pronounced \de.fi\. dem is at rank #16,107, tagged as anoun.

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 19561, this pair ranks #372,646 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of défi vs dem

Shared letters: d. Private to "défi": fié. Private to "dem": em.

"défi" · 4 letters · shape CVCV · "dem" · 3 letters · shape CVC

Frequently Asked Questions

Can "défi" and "dem" be used interchangeably?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

In ordinary French text, does "défi" or "dem" show up more?

"défi" is the more common of the two: it sits at frequency rank #3,454 in our French list, against #16,107 for "dem". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "défi" and "dem". Here's where to go from here.

Full dictionary entry for "défi" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "dem" - compare definitions side by side with the headword page. Word entry
This pair ranks #372,646 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"défi" and "dem" also get mixed up with nearby pairs, the highest-scored neighbour is "dem vs denim". Nearby pair

Confusion rank #372,646 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.