1. (verb)organize, organise, coordinate bring order and organization to "Can you help me organize my files?"
2. (verb)form, organize, organise create (as an entity) "social groups form everywhere"; "They formed a company"
3. (verb)unionize, unionise, organize, organise form or join a union "The auto workers decided to unionize"
4. (verb)organize, organise cause to be structured or ordered or operating according to some principle or idea
5. (verb)organize, organise, prepare, devise, get up, machinate arrange by systematic planning and united effort "machinate a plot"; "organize a strike"; "devise a plan to take over the director's office"
6. (verb)mastermind, engineer, direct, organize, organise, orchestrate plan and direct (a complex undertaking) "he masterminded the robbery"