The purpose of this document, which is developed as one component of a larger Colonial Academic Alliance IN/CO Grant Program (PI: Mathew Gendle), is to lend clarity on definitions related to community engagement as one component of the grant entitled “Preparing Students and Institutions to Engage in Community-Based Learning.” We have provided examples of critical terms, including civic engagement, community engagement, outreach, community outreach, academic service learning, service learning, community-engaged teaching and learning, community-engaged research and creative activities, community-based research, community-engaged services and practices, community-engaged commercialized activities, and volunteerism. A model depicting the relationship between terms is also provided. As part of this work, we have critically reviewed definitions from working documents and leading organizations Definitions were determined after a thorough review of literature, including sources from Campus Compact, the Carnegie Foundation’s Community Engagement Classification, the Kellogg Foundation, the Association of Public & Land-Grant Universities, and the Center for Disease Control and Prevention’s Principles of Community Engagement, and University partner internal documents.