To arrange systematically; to order. She decided to organise her books by genre.
To coordinate the activities of a group of people efficiently. He was hired to organise the team for the upcoming project.
To form into a structured or coherent whole. The community leaders worked to organise the local resources for better access.
To plan or prepare for an event or activity. They need to organise the annual charity event by next month.
To establish or set up (a group, union, or other collective body). The employees voted to organise a union to negotiate better wages.