[{"Bold_text": "noun", "List Items": ["a bent or curved piece of tough wood used by Australian Aboriginal peoples as a throwing club, one form of which can be thrown so as to return to the thrower.", "something, as a scheme or argument, that does injury to the originator.", "Theater.a mobile platform, adjustable to different levels, for painting scenery.a batten, usually suspended vertically in the wings, for holding lighting units.", "a mobile platform, adjustable to different levels, for painting scenery.", "a batten, usually suspended vertically in the wings, for holding lighting units."]}, {"Bold_text": "verb (used without object)", "List Items": ["to come back or return, as a boomerang.", "to cause harm to the originator; backfire."]}, {"Bold_text": "adjective", "List Items": ["coming back, returning, or backfiring:the boomerang consequences of his lies.", "Informal.of or noting a person who returns to their parents’ home or to a previous job after a period of living or working elsewhere:a boomerang kid;boomerang employees."]}]