[{"Bold_text": "verb (used with object)", "List Items": ["to make repeated and insistent demands upon, especially for the payment of a debt."]}, {"Bold_text": "noun", "List Items": ["a person, especially a creditor, who duns another.", "a demand for payment, especially a written one."]}, {"Bold_text": "adjective", "List Items": ["dull, grayish brown.", "dark; gloomy."]}, {"Bold_text": "noun", "List Items": ["a dun color.", "a dun-colored horse with a black mane and tail.", "mayfly(def1) mayfly(def1).", "Angling. dun fly(def) dun fly(def)."]}]