warning signal Definition

alert, alarm, alarum, siren, beep, beacon, tocsin, klaxon, flare, notice, horn, fusee, foghorn, suren, bleep, maroon, fogsignal, beeping, blip, fuzee, knell, light, note, sound, traffic light, whistle, burglar alarm, red flag, high sign, air alert, marooned, smoke detector, ache, advance, amber, annunciator, bell, blinker, fire alarm, flash, gong, guard, harbinger, indicator, jump, lighthouse, monitor, monitoring, nudge, nudging, omen, oost, post, posted, radar, red, sign, signals, signed, sos, summons, taps, token, toot, torpedo, torpedoing, warn, growl, foreshadow, roar, signs, snap, taillight, dead, hist, honk, once, pst, short, snow, sss, detonator, shofar, address, addressing, admonish, admonition, advertisement, advisory, ahem, aposematic, attention, aura, avast, baa, beware, blaze, blazed, boards, bow,