[{"Bold_text": "noun", "List Items": ["a small tower, usually one forming part of a larger structure.", "a small tower at an of a building, as of a castle or fortress, frequently beginning some distance above the ground.", "Also calledtur·ret·head[tur, -it-hed, tuhr, -].a pivoted attachment on a lathe or the like for holding a number of tools, each of which can be presented to the work in rapid succession by a simple rotating movement.", "Military.a domelike, sometimes heavily armored structure, usually revolving horizontally, within which guns are mounted, as on a fortification, ship, or aircraft.", "Fortification.a tall structure, usually moved on wheels, formerly employed in breaching or scaling a fortified place, a wall, or the like."]}]