[{"Bold_text": "noun", "List Items": ["Astronomy.a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.Oftenthe galaxyorthe Galaxy.the system of stars in which the earth and the sun are located; the Milky Way Milky Way.", "a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.", "Oftenthe galaxyorthe Galaxy.the system of stars in which the earth and the sun are located; the Milky Way Milky Way.", "any large and brilliant or impressive assemblage of people or things:Guests at the party included a whole galaxy of opera stars."]}]