a fire or light set up in a high or prominent position as a warning, signal, or celebration (设在高处作为警告、信号或庆贺的)烽火 ■[often inplace names](Brit.)a hill suitable for such a fire or light (英)适宜点烽火的山 Ivinghoe Beacon. 艾温霍烽火山。 ■a light or other visible object serving as a signal, warning, or guide, especially at sea or on an airfield (海上的)灯塔;(飞机场)灯标 ■a radio transmitter whose signal helps to fix the position of a ship, aircraft, or spacecraft (用于确定船只、飞机或航天器位置的无线电)信标
语源
Old English bēacn 'sign, portent, ensign', of West Germanic origin; related to beckon