Which to use
“dF” is a name and “du” is an article - they look or sound alike but fill different roles in a sentence.
- #38,749
- “dF” frequency rank
- #17
- “du” frequency rank
- 38766
- confusion score
Side-by-Side Comparison
| Feature | dF | du |
|---|---|---|
| Definition | Abréviation de Die Freiheitlichen, nom d’un parti politique italien. | Une quantité indéfinie de. Note d’usage : Utilisé avec un nom indénombrable. |
Where the eye mixes dF and du
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between dF and du
These two trip readers on the page rather than in the ear: dF is \ˌdi.ˈɛf.fe\ while du is \dy\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - f in “dF” becomes u in “du”, and the parts of speech differ too (name vs article), which is usually the fastest check. Our composite confusion score for this pair is 38766, derived from the frequency rank of both members and their visual similarity.
dF is recorded at frequency rank #38,749, classified as aname, pronounced \ˌdi.ˈɛf.fe\. 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 38766, this pair ranks #252,948 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of dF vs du
Shared letters: d. Private to "dF": f. Private to "du": u.
"dF" · 2 letters · shape CC · "du" · 2 letters · shape CV
Frequently Asked Questions
Do "dF" and "du" mean the same thing in a sentence?
In ordinary French text, does "dF" or "du" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "dF" 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 #252,948 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "dF" and "du" also get mixed up with nearby pairs, the highest-scored neighbour is "DCI vs dF". Nearby pair
Confusion rank #252,948 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.