Le Petit Larousse 2019 is a comprehensive language dictionary and encyclopedia app by Editions Larousse. It offers over 63,000 words with more than 120,000 meanings and 20,000 phrases. Additionally, it includes 1,500 language and spelling notes, 2,000 regional terms, and words from the French-speaking world. The app also features an illustrated encyclopedia section with 28,000 proper names, 4,500 encyclopedia additions, and 2,500 photos, drawings, and maps.

The app's standout features include famous "pink pages" containing proverbs, foreign phrases, historical words, and a collection of French phrases. It provides assistance for word games by helping users find words based on specific letter positions or by combining all the letters of a word. The app also offers a dictionary game for word definition practice, with 800 questions in training mode and 10,000 words and definitions in expert mode.