[{"Bold_text": "noun", "List Items": ["knowledge of or instruction in the basic principles of a subject:You'll need a thorough grounding in linguistics to understand the lecture.", "Aeronautics.the act of restricting an aircraft to the ground because of bad weather, the unsatisfactory condition of the aircraft, etc.:The grounding of the aircraft due to fog meant the passengers were stranded."]}, {"Bold_text": "adjective", "List Items": ["giving or relating to a feeling of being mentally or emotionally balanced due to a peaceful, practical, or realistic outlook:Her down-to-earth point of view made her a grounding presence in their lives.", "Electricity.being or relating to a conducting connection between an electric circuit or equipment and the earth or some other conducting body:Check that all grounding wires are intact before beginning further repairs."]}]