noun
catechism
A Christian term referring to a summary of religious doctrine, often in a question-and-answer format, used for instruction.
教会で公会問答を学ぶ。
I study the catechism at church.
From 公会 (こうかい, 'public meeting' or 'church council') and 問答 (もんどう, 'questions and answers'), referring to a formal catechetical dialogue.