warning signal

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ThesaurusAntonymsRelated WordsSynonymsLegend:
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)
References in classic literature ?
Tarzan did not repeat his warning signal, but instead rushed bodily upon the waiting Terkoz.
Maybe Abu M has not noticed, but here in Bahrain, traffic signals are also fitted with an amber warning signal to indicate that the signal is changing to red or stop.
JADEJA ' ' ' ' During the December 2012 elections, AAP was not a factor to be worried about, but the stunning victory of the party in Delhi is a warning signal for us.
The Springboks crossed six times and kept the visitors scoreless after the interval as they sent out a warning signal to Warren Gatland's side.
Nine provinces in Visayas and Mindanao are under public storm warning signal.
The study, published online this month in Proceedings of the Royal Society B, is the first evidence that song-matching is used as an early warning signal.
We need to send a warning signal to this Government that this is not acceptable.
Hong Kong, July 23, 2012 - (ACN Newswire) - The Hong Kong Observatory has announced that Tropical Cyclone Warning Signal No.
Dick will fire the five-minute warning signal, while in lieu of no surviving Joanne Brodie (third overall) crew being found, Colin Betts has the honour of firing the 10-minute warning signal.
These cars will then relay the warning signal to vehicles that are further away from the collision.
After four years of meetings and discussions among a team of emergency management officials, a uniform tsunami warning signal has been established for the Oregon Coast.
This is said to result in the optimum combination of warning capability and annoyance reduction, unlike the wider range of frequencies used by broadband alarms which may result in a sound that easily blends with ambient noise and is too different to be recognized as a warning signal.