beacon
https://gyazo.com/4209519a6ac305129965e20d9e269453
source: By AndyScott - Own work, CC BY-SA 4.0
noun
a fire or light set up in a high or prominent position as a warning, signal, or celebration:
信号灯, 信号ブイ; 灯台
e.g. a chain of beacons carried the news
e.g. figurative : the prospect of a new government was a beacon of hope for millions.
British (often in place names) a hill suitable for beacon of fire or light:
｟英｠ のろしを上げる丘.
e.g. Ivinghoe Beacon
e.g. the Brecon Beacons.
a light or other visible object serving as a signal, warning, or guide at sea, on an airfield, etc.
航空［航路］標識
a radio transmitter whose signal helps to fix the position of a ship, aircraft, or spacecraft.
無線標識(radio beacon)
ORIGIN
Old English bēacn ‘sign, portent, ensign’, of West Germanic origin; related to beckon.