catechism /ˈkætɪˌkɪzəm/ noun3 •A book, in question and answer form, summarizing the basic principles of Christianity. •A basic manual in some subject. •A set of questions designed to determine knowledge.Inscrutable His ways are, and immune To catechism by a mind too strewn With petty cares to slightly understand What awful brain compels His awful hand. — 1925 formscatechisms