distress signal Synonyms

distress call hint of danger flares danger signal cry for help heads up call for help mayday wake-up call siren call SOS warning sign alarms hazard warning signal emergency message distress beacon signal for help alert signal signal of distress emergency signal call for aid request for help alarm bell fire alarm horn hint forewarning flare bell beacon alert alarm advice indication message notice burglar alarm air horn whistle warning tocsin siren signal sign notification admonition