a guiding or warning signal, as a light or fire, esp. one in an elevated position.

a tower or hill used for such purposes.

a lighthouse, signal buoy, etc., on a shore or at a dangerous area at sea to warn and guide vessels.

Navigation .

radio beacon.

a radar device at a fixed location that, upon receiving a radar pulse, transmits a reply pulse that enables the original sender to determine his or her position relative to the fixed location.

a person, act, or thing that warns or guides.

a person or thing that illuminates or inspires

The Bible has been our beacon during this trouble.

to serve as a beacon to; warn or guide.

to furnish or mark with beacons

a ship assigned to beacon the shoals.

to serve or shine as a beacon

A steady light beaconed from the shore.

noun

alarm , alert , balefire , beam , bonfire , flare , guidepost , heliograph , lamp , lantern , lighthouse , lodestar , pharos , radar , rocket , sign , signal fire , smoke signal , warning signal , watchtower , cresset , guide , mark , pharos. associated word:pharology , seamark , signal , signpost , warning