This is the first Glossary of basic terms used in the federalism discourse produced in Nepal. It offers definitions for some 300 federal terms and their translation into Nepali. The experts involved in developing it, have tried to give not just the basic understanding of each term, but also contextualize it in ways that help understanding of the Nepalese readers. Federalism as a form of government in which power is constitutionally divided between a central (national) government and sub-national (state, provincial, regional) governments is very new to Nepal. In this concept, both levels exercise some powers (rather than power being exclusive to the central government or the sub-national governments), and produce a shared government based on a written constitution. While Nepalis are debating a possible constitutional arrangement in this regard, this Glossary, as the publishers have pointed out, can help them understand and use the terms in proper perspective. It tries to address the need for clarity in the use of words or terms that have been central to any political discourse in this regard. By default, it will also help in the standardization of Nepali constitutional terminology. Finally, this Glossary may also prompt the critiques to suggest appropriate alternative translation for some terms in this Glossary which are still difficult to understand in Nepali (for example, aayatanko arthlabh for economics of scale, and bharit pratinidhitwa for weighted representation).