Larousse Dictionnaire de français
The classic monolingual French dictionary: 135,000 definitions, free online.
DictionariesWebsitesFreeIntermediateAdvancedB1–C2
What it actually is
A proper French-to-French dictionary with 90,000 articles, plus synonym/antonym lists and a conjugator for 9,600+ verbs — the point at which you stop translating and start defining words in French. Free and no account needed. Not a beginner tool: definitions assume you already read French comfortably.
What it covers
- Vocabulary
- Reading
- Writing