Definition: Dorm - A small room in a house or monastery where monks sleep, often for religious purposes. Definition: - A small room in a house or monastery where monks sleep, often for religious purposes. - (Noun) The place or quarters occupied by monks for religious instruction and prayer under the direction of their spiritual leaders. - (Noun) The bed used during religious ceremonies at a church, usually made of cloth. - (Noun) A small room in a monastery or house where monks sleep; often for religious purposes.