"The US Government Glossary of Interagency and Associated Terms (USG Glossary) identifies standard terminology experienced in cooperation activities of the Federal branches of government and their components. These organizational terms, together with their definitions, provide an overview of existing terminology for general use and understanding by all USG components when making policy, developing strategy and doctrine, delivering advice, or creating plans and facilitating training and exercises. […] As identified in multiple fora (e.g. conferences, workshops), interagency representatives expressed the need for terms with definitions that have useful, consistent, inclusive and exclusive meaning. Starting with the Departments of Defense and Homeland Security Dictionaries, this document begins that discussion by inventorying organizational terms and definitions from both legislative (US Code) and executive branches of government (Department and Agency Strategic Plans). The purpose is to improve communication and mutual understanding within the federal government to increase efficiencies among and between workforces. This document is not intended to be an all-inclusive compilation of interagency terms, nor does it recommend one term over others. It is to be used as a guide only, and in no event will it become a vehicle for establishing or interpreting policy or doctrine for unified action of the work forces. It is published with the understanding that it not be definitive of the mission or function of any of department. The terms and definitions are not binding to the US Government. This document not intended to be used as a legal document nor reflect all the relevant statutory provisions, regulations or other guidance."
Defense Technical Information Center: http://www.dtic.mil/