warning signal

Also found in: Thesaurus, Encyclopedia, Wikipedia.
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.
1689 h Safety supervision, about 3918 h flagmen, about 26 hr remote controlled warning signal transmitter, festivals barrier 6 x 100 m (500 md), 3 x 200 m (per 1 000 md), 2 x 800 m (per 4000 md), 2 x 100 m (per 400 md), 6 x 50 m (250 md) 200 m (400 md) 200 m (800 md) 200 m (4,200 md), 200 m (1 400 md ), 3 x 80 m (each 320 md), 2 x 150 m (per 600 md), AWS 400 m (2000 md), 2 x 200 m (per 1 000 md) 400 m (1600 md), 2 x 200 m (per 600 md), 4800 m (67 200 md), 1600 m (6400 md), about 26 hours warning signal transmitter, 5 pcs.
Investors and analysts saw Greenspan's comments as a warning signal that even though America is enjoying the best combination of rapid growth, low unemployment and low inflation in three decades, the central bank is worried.
Nation ( Article MRec ), pagematch: 1, sectionmatch: 1 "Sea travel remains risky over the seaboards of areas under Tropical Cyclone Warning Signal," it added.
Occasional rains and gusty winds will be experienced over provinces under Public Storm Warning Signal (PSWS #1) while those under PSWS #2, #3 and #4 will have stormy weather.
PANGASINAN As Typhoon Lando will gain strength as it comes near Northern Luzon and Pangasinan under Storm Warning Signal No.
Kendrick said the airline traced the warning signal to a transponder that was being tested in a grounded plane at Van Nuys Airport.
She added that a warning signal that the "rescuers" are scammers is when they tell homeowners not to contact their lender or attorney.
The province of Batanes is still under public storm warning signal (PSWS) no.
THE tentative settlement of the Teamsters union strike against United Parcel Service - organized labor's biggest victory in a generation - should send a warning signal to America's corporate boardrooms and to the nation's capital.
Tropical cyclone warning signal number 2 was raised over the Batanes group of islands as of 5 a.
which owns and operates the track, why a warning signal closer to the shunting switch than three miles was removed during a track overhaul three years ago.