The Dictionary of the Frisian Language (Wurdboek fan de Fryske Taal) is online available via the GTB dictionary web application. The GTB also holds other major Dutch historical dictionaries, such as the Dictionary of Old Dutch (ONW), the Dictionary of early Middle Dutch (VMNW), the Dictionary of Middle Dutch (MNW), and the Dictionary of the Dutch language (WNT). The digital
surrounding enables extensive forms of free and structured search queries, including comparative studies with Dutch materials.