The plural form of catechumen is catechumens.

What does catechumen mean?

catechumen, a person who receives instruction in the Christian religion in order to be baptized. ... Most of them were merely “adherents” of the church, while others were under definite instruction for baptism. As infant baptism became general, the catechumenate decreased.

What is a catechumen in the Catholic Church?

Participants in the RCIA are known as catechumens. They undergo a process of conversion as they study the Gospel, profess faith in Jesus and the Catholic Church, and receive the sacraments of baptism, confirmation and Holy Eucharist.