<p><strong>Noun</strong></p><ul><li>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</li><li>something, as a scheme or argument, that does injury to the originator</li><li>Theater: a mobile platform, adjustable to different levels, for painting scenery</li><li>a batten, usually suspended vertically in the wings, for holding lighting units</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) to come back or return, as a boomerang</li><li>to cause harm to the originator; backfire</li></ul><p><strong>Adjective</strong></p><ul><li>coming back, returning, or backfiring: the boomerang consequences of his lies</li><li>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</li></ul>