noun

• 1(Chiefly in Scotland) a local Presbyterian association or society formed for the purpose of prayer and fellowship, in defiance of the episcopal structure imposed on the Church of Scotland from 1661 to 1690; a meeting of such a society (now historical).

• 2(More generally) an informal Christian meeting or gathering typically involving intimate or spiritual conversation, prayer, and general socializing; (in later use also) a meeting for the mutual support and rehabilitation of persons affected by addiction to alcohol, drugs, etc.