National libraries are an integral part of a country's cultural and intellectual heritage, and they offer a variety of resources to the public. A synonym for national libraries could be 'state libraries', as they are often funded and administered by a government or state. Another synonym could be 'central libraries', as they are often located in the heart of a city or capital and serve as a central information hub for the nation. Other synonyms include 'public libraries', 'government libraries', 'national archives', and 'national collections', all of which highlight the importance of national libraries in preserving and disseminating knowledge.