Introduction: Standardized metadata, linked meaningfully using semantic web technologies are prerequisites for cross-disciplinary Digital Humanities research as well as for FAIR data management. In this article from the Open Access Journal o-bib, members of the project „GND for Cultural Data“ (GND4C) describe how the Gemeinsame Normdatei (GND) (engl.  Integrated Authority File), a widely accepted vocabulary for description and information retrieval in the library world is maintained by the German National Library and how it supports semantic interoperability and reuse of data. It also explores how the GND can be utilized and advanced collaboratively, integrating the perspectives of its multidisciplinary stakeholders, including the Digital Humanities. For background reading, the training resources „Controlled Vocabularies and SKOS“ (https://campus.dariah.eu/resource/controlled-vocabularies-and-skos) or „Formal Ontologies“ (https://campus.dariah.eu/resource/formal-ontologies-a-complete-novice-s-guide) are of interest.