warning signal

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Noun1.warning signal - an automatic signal (usually a sound) warning of dangerwarning signal - an automatic signal (usually a sound) warning of danger
torpedo - a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead
signal, signaling, sign - any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
air alert - the warning signal that begins a period of preparation for an enemy air attack
burglar alarm - a loud warning signal produced by a burglar alarm; "they could hear the burglar alarm a mile away"
fire alarm - a shout or bell to warn that fire has broken out
foghorn, fogsignal - a loud low warning signal that can be heard by fogbound ships
horn - a noise made by the driver of an automobile to give warning;
red flag - a flag that serves as a warning signal; "we didn't swim at the beach because the red flag was up"
siren - a warning signal that is a loud wailing sound
alarm bell, tocsin - the sound of an alarm (usually a bell)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
Tarzan did not repeat his warning signal, but instead rushed bodily upon the waiting Terkoz.
PAGASA was expected to raise tropical cyclone warning signal No.
The tropical cyclone warning signal earlier hoisted over 14 areas in Visayas and Mindanao has been lowered.
com) - January 21, 2019 - 11:53am MANILA, Philippines Tropical Cyclone Warning Signal No.
Pagasa noted that tropical cyclone warning Signal no.
With this weather condition, Tropical Cyclone Warning signal No.
PAGASA said that tropical cyclone warning signal number one may be raised over Albay, including Burias Island,Romblon, Aklan, Capiz, northern section of Negros Occidental, and the northern section of Iloilo in the next severe weather bulletin.
Tropical Cyclone Warning Signal Number 1 is still up in 14 provinces in Luzon and Visayas.
The Coast Guard said that sea travel for ships are prohibited when a public storm warning signal is hoisted over specific areas.
He said all types of vehicles would be barred from leaving port in areas that PAGASA placed under warning Signal #1.