Definitions for "roleplaying"
acting a particular role (as in psychotherapy)
In roleplaying, participants adopt and act out the role of characters, or parts, that may have personalities, motivations, and backgrounds different from their own. Roleplaying is like being in an improvisational drama or free-form theatre, in which the participants are the actors who are playing parts, and the audience.
Keywords:  game, playing
A role playing game Game