Term: factory whistle: a whistle at a factory that is sounded to announce times for starting or stopping work
Broader: device: an instrumentality invented for a particular purpose | Unrelated: bell: (nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.
Broader: device: an instrumentality invented for a particular purpose | Unrelated: field hockey ball: ball used in playing field hockey
Broader: device: an instrumentality invented for a particular purpose | Unrelated: facility: a natural effortlessness; ; --Jane Austen
Broader: device: an instrumentality invented for a particular purpose | Unrelated: canfield: a form of solitaire that involves gambling
Broader: device: an instrumentality invented for a particular purpose | Unrelated: butane: occurs in natural gas; used in the manufacture of rubber and fuels
Broader: device: an instrumentality invented for a particular purpose | Unrelated: incubator: apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants
Broader: device: an instrumentality invented for a particular purpose | Unrelated: reflexive verb: a verb whose agent performs an action that is directed at the agent
Broader: device: an instrumentality invented for a particular purpose | Unrelated: synovia: viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.
Broader: device: an instrumentality invented for a particular purpose | Unrelated: balaenoptera: type genus of the Balaenopteridae
Broader: device: an instrumentality invented for a particular purpose | Unrelated: slop basin: a bowl into which the dregs of teacups and coffee cups are emptied at the table