IPA: //ˌkætəˈkiːsɪs//
KK: /kætɪˈkiːsɪs/
A type of religious teaching or instruction, often given orally, to prepare individuals for baptism or confirmation in the Christian faith.
The church offers catechesis to help new members understand their faith better.
Catechesis is derived from the Greek "katekhesis" (meaning instruction or teaching) and "katechein" (meaning to sound down or to instruct). The word refers to the act of teaching or instructing, particularly in a religious context.
Think of 'instruction' ('katekhesis') that is 'sounded down' ('katechein') to someone, which helps you remember that catechesis is about teaching or instructing, especially in faith.