[{"Bold_text": "adjective", "List Items": ["capable of or designed for being connected to an electrical power source by plugging in plugging inor inserting:a plug-in transistor.a plug-in hair dryer;a plug-in transistor."]}, {"Bold_text": "noun", "List Items": ["plug(def3) plug(def3).", "jack1(def3) jack1(def3).", "a plug-in appliance.", "Computers.a small software program that builds additional functionality into a stand-alone computer application:Your web browser can’t display this video without a plug-in."]}]