The post-Cold War era has ushered in an array of complex challenges, expanding the scope of security agendas for states and multilateral organizations alike. This transformation necessitated regional and international approaches, encompassing multifaceted security threats such as human rights abuses, international terrorism, climate change, migration, pandemics, and cyberattacks. As a result, coordination between civilian and military actors became indispensable. However, this shift brought forth a multitude of civil-military concepts, each tailored to specific entities but resulting in significant confusion due to subtle variations in terminology and interpretation. For instance, the United Nations, European Union, and North Atlantic Treaty Organization employ various civil-military concepts, often sharing similar terms but conveying distinct meanings. Such conceptual disparities can lead to misunderstandings and hinder effective coordination. This paper introduces an analytical tool that categorizes organization-specific civil-military concepts into archetypes and provides a repository of official concepts and their summaries. The analytical framework is based on four core parameters of each civil-military concept, i.e. the main perspective, the scope, the level of applicability, and whether the concept entails a dedicated function. This resource aims to facilitate a common language for navigating and bridging different civil-military concepts. While essential for national militaries in multinational operations, this guide also benefits civilians engaging with military organizations, providing insights into military approaches to civil-military relations and aiding in identifying interlocutors within military structures. Ultimately, this framework accommodates future developments in civil-military concepts, enabling a contextual understanding within the existing conceptual landscape.