Organiser
Part of speech: noun
Definition: A person who arranges the details of a public event.
Organizer
Part of speech: noun
Definition: A device used to help one organize, by separating into subsectionsA person who arranges the details of a public eventA 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.A group of cells that, together with the evocator, control differentiation in the embryo; the inductor
Example sentence: I'm not the geek in the family: I'm the organizer. But what I do know is that we have a very terrific team of consultants, former federal cybersecurity experts who are working with us to make sure we have a very safe system.