Synonyms of 'foghorn'

alarm, alarm clock, alarum, alert, all clear, balefire, beacon, bell, blinker, blue peter, buoy, burglar alarm, buzzer, fiery cross, fire alarm, flare, fog bell, glance, gong buoy, green light, heliograph, high sign, hooter, Horn, kick, klaxon, leer, lighthouse, Mayday, Nod, nudge, pilot flag, poke, bell buoy, radio beacon, red flag, red light, rocket, Roman candle, semaphore, sign, signal, siren, spar buoy, tocsin, touch, traffic light, watch fire, whistle, white flag, wigwag, wink, yellow flag