BLANC Meaning of BLANC in English /blahonn/ , n.1. Jean Joseph Charles Louis /zhahonn zhaw zef" shannrddl lwee/ , 1811-82, French socialist and historian. 2. Mont . See Mont Blanc (def. 1). Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012