HASIDISM Meaning of HASIDISM in English nounor chas·i·dism or hass·i·dism or chass·i·dism ˈhasəˌdizəm, ˈḵäs-( -s )Usage: usually capitalized: the practices and beliefs of the Hasidim Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012