The Académie française (French Academy) is the organization in charge of regulating and perfecting the French language. It’s one of the oldest institutions in France.
Follow the link for the online version:
https://www.dictionnaire-academie.fr/
Additionally, we can use the monolingual dictionary by Larousse that collates all the lexicographic and terminological work and content created in French by the publishing house of Pierre Larousse.
Follow the link for the online version:
https://www.larousse.fr/dictionnaires/francais
