Initiation is a rite of passage marking entrance or acceptance into a group or society. It could also be a formal admission to adulthood in a community or one of its formal components. In an extended sense it can also signify a transformation in which the initiate is 'reborn' into a new role.

What does the word initiation?

: the process of being formally accepted as a member of a group or organization : the process of being initiated. : a ceremony or series of actions that makes a person a member of a group or organization. : the act of starting something : the beginning of something.

What is initiation and examples?

Examples of initiation ceremonies might include Christian baptism or confirmation, Jewish bar or bat mitzvah, acceptance into a fraternal organization, secret society or religious order, or graduation from school or recruit training.