The exact qualifications for labelling a group a secret society are disputed, but definitions generally rely on the degree to which the organisation insists on secrecy , and might involve the retention and transmission of secret knowledge, the denial of membership or knowledge of the group, the creation of personal bonds between members of the organisation, and the use of secret rites or rituals which solidify members of the group.
Overview of Secret Societies in various countries.
Propaganda Due (P2) Lodge, Red Lanterns, Afrikaner Broederbond, Burschenschaften, Grand Firmament, Carbonari, Illuminati, Jesuits and Gormogons.