Entry 1 sense Webster, 1913 Methodism /mĕth'-əd-ĭzˌ-əm/ · Meth·o·dism · IPA /mˈɛθədˌɪzəm/ 01 n. The system of doctrines, polity, and worship, of the sect called Methodists. 1. The system of doctrines, polity, and worship, of the sect called Methodists.(Eccl.)