1. to divide or organize into separate departments or sections
Usage: transitive verb; often used in business and organizational contexts
2. to separate into distinct, isolated categories or mental compartments
Usage: transitive verb; often used figuratively to describe how people mentally organize information or emotions

Examples

• The company decided to departmentalize its operations to improve efficiency.
• She tends to departmentalize her work life and personal life.
• The large corporation departmentalized its divisions by region and product type.
• Some people departmentalize their emotions to cope with stress.
• The school departmentalized its curriculum into separate subject areas.
• He departmentalized his responsibilities among different team members.