[{"Bold_text": "noun", "List Items": ["a material consisting of extremely fine filaments of glass are combined in yarn and woven into fabrics, used in masses as a thermal and acoustical insulator, or embedded in various resins to make boat hulls, fishing rods, and the like."]}, {"Bold_text": "verb (used with object)", "List Items": ["to cover or form with fiberglass."]}, {"Bold_text": "verb (used without object)", "List Items": ["to use or work with fiberglass."]}]