beacon
/ˈbiːkən/noun
1- 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。
1.1
- often in place 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。
1.2
- 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; （飞机场的）灯标。
1.3
- 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。
词源
Old English bēacn 'sign， portent， ensign'， of West Germanic origin; related to BECKON.