Basque UK /bɑːsk/US /bæsk/adjective 1noun 1forms 1 adjective1 •Relating to the Basque people or their language.The edict was issued in 1615 after a storm destroyed three Basque whaling vessels on an expedition in Iceland. — 2015 noun1 •A member of a cultural and ethnic people living in the western Pyrenees and the Bay of Biscay between France and Spain. formsBasques