lighthouse beam
Maritime warning light
A lighthouse beam is the rotating shaft of light projected from a lighthouse to guide ships and warn of hazards.
The beam sweeps in a predictable pattern across the water, visible for miles: The lighthouse beam cut through the fog.
Figuratively, anything that serves as a guiding signal or sweeps rhythmically may be called a lighthouse beam.
- beaconGuiding light source
- searchlightFocused lamp for distance
- rayNarrow light emission
- signalMessage-conveying cue
- coastLand beside the ocean
rocky coast · foghorn · tower · sweep · rotating · maritime · navigation · harbor · safe harbor · warning · lantern · lens · Fresnel · guiding · shore · sailor · piercing · revolving
lighthouse beamdarkness
Total absence of light
blackout · siren song · fog · shipwreck · obscurity
lighthouse beamblackness
Complete absence of light
murk · fog bank · shadow · moonless night · gloom
lighthouse, light, house, beam, lights, lighted, lighting, lighter, lightest