His first position was regent of the College of Vitry-le-François, next preceptor in Dijon.
Received as an advocate in service to the Parliament of Paris, he abandoned his affairs for literature and researched the Society of Perrot d'Ablancourt and that of Petru.
He is the author of the first French dictionary compiled in a methodical way, published under the title of: His caustic sense of humour earned him enemies; this first edition, of which there were several counterfeit foreign editions, contains satirical passages at the expense of notables of the day including Amelot de La Houssaye, Furetière, Varillas, and others.
Those that appeared after his death are distinguished by that of Pierre Aubert (Lyon, 1728, 3 vol.
Other works by Richelet are: He was also the author of several untitled translations as well as: His Dictionnaire françois is distinguished in: