Definitions
1.NounA person who arranges the details of a public event.
2.NounA hand-held micro-computer that will perform specific tasks; can be used as an electronic diary, alarm clock, recorder of memos and notes, a portable database etc."I'll add that meeting to my organizer."
3.NounA non-electronic notebook or calendar or something similar, used to organize one's affairs.
4.NounA group of cells that, together with the evocator, control differentiation in the embryo; the inductor
5.Nouna recipient, such as a box or a case, used for storing gadgets, trinkets and other knick-knacks; an organizer box"desk organizer; makeup organizer"