[{"Bold_text": "noun", "List Items": ["Physics.the force of attraction between any two masses.Compare law of gravitation law of gravitation.an act or process caused by this force.", "the force of attraction between any two masses.Compare law of gravitation law of gravitation.", "an act or process caused by this force.", "a sinking or falling.", "a movement or tendency toward something or someone:the gravitation of people toward the suburbs."]}]