[{"Bold_text": "noun", "List Items": ["any tree or shrub belonging to the genus Quercus,of the beech family beech family,bearing the acorn as fruit.", "the hard, durable wood of an oak tree, used in making furniture and in construction.", "Archaic.the leaves of an oak tree, especially as worn in a chaplet ."]}, {"Bold_text": "adjective", "List Items": ["pertaining to or made of oak:an oak desk;heavy oak doors with double locks."]}]