Leadership is filled with concepts that often do not have an agreed upon definition. The purpose of this paper is to share a learning activity that provokes students' thinking about the nature of leadership using six leadership definitions. This activity is a dynamic starting place to explore what leadership is and is not, how it differs from management, a historical perspective of leadership, and students' diverse perspectives about leadership. This activity is a straightforward, critical thinking exercise that offers a conduit to a deeper understanding that how we define leadership says something about what we value in a leader. We suggest modifications to this definitional exercise and discuss how to use it in different teaching environments.