The term 'Kind of Union' can refer to three different types of unions. A TRADE Union is an organization of workers formed to protect and advance their rights and interests, usually through collective bargaining. A STUDENT Union is an organization of students formed to represent the interests of its members in a particular educational institution. Finally, a LABOR Union is an organization of workers formed to protect and advance their rights and interests, usually through collective bargaining. All three types of unions are dedicated to protecting the rights of their members and advocating for better working conditions.