1. a group of people working together for a common purpose
2. the act or process of arranging things in an orderly way
3. the way in which something is arranged or structured

Examples

• She works for a nonprofit organization that helps homeless people.
• The Red Cross is an international humanitarian organization.
• Good organization is essential for managing a busy schedule.
• The organization of the files made them easy to find.
• The company’s organization includes several departments.
• His desk showed a complete lack of organization.
• The organization of the book makes it easy to follow.