[{"Bold_text": "noun", "List Items": ["a long, narrow elevation of land; a chain of hills or mountains.", "the long and narrow upper edge, angle, or crest of something, as a hill, wave, or vault.", "the back of an .", "any raised, narrow strip, as on cloth.", "the horizontal line in which the tops of the rafters of a roof meet.", "(on a weather chart) a narrow, elongated area of high pressure."]}, {"Bold_text": "verb (used with object)", "List Items": ["to provide with or form into a ridge or ridges.", "to mark with or as if with ridges."]}, {"Bold_text": "verb (used without object)", "List Items": ["to form ridges."]}]