schism /ˈskɪzəm/noun 4verb 1forms 3 noun4 •A split or separation within a group or organization, typically caused by discord.A schism broke the organization into two rivals. •A formal division or split within a religious body.The schism between Sunnis and Shias happened quite early in Islamic history. •A split within Christianity whereby a group is no longer in communion with the Church or its ecclesiastical authorities, but shares essentially the same beliefs; in other words, a political split without the introduction of heresy. •A movement or organization that splits off from a larger body.He founded a schism that eventually rivaled the original organization in size. verb1 •To split, divide (a group or organization). formsschismed · schisming · schisms