sos
Urgent plea letters
SOS is a distress signal, originally used in Morse code because its pattern (three dots, three dashes, three dots) was easy to transmit and recognize.
It now serves as a general call for urgent help: She sent out an SOS when the project collapsed.
The letters don't stand for anything—"save our ship" and "save our souls" are folk etymologies.
Serious sudden danger
danger · panic · desperation · peril · trouble · plight · predicament · jeopardy
Guiding light source
- flareSudden bright burst
- transmissionSending of information
- codeSymbolic communication system
- dotsSmall circular marks
dashes · radio · wireless · maritime · nautical · broadcast · communication · antenna
Emergency vessel for survivors
- helicopterRotary-wing aircraft
- coastguardSeafaring emergency responders
- lifesaverEmergency rescue person
- paramedicPrehospital emergency caregiver
survivor · ambulance · evacuation · triage · lifeline · recovery · salvage · extrication
emergency
Serious sudden danger
crisis · danger · panic · desperation · peril · trouble · plight · predicament · jeopardy · dire
beacon
Guiding light source
- flareSudden bright burst
- transmissionSending of information
- codeSymbolic communication system
dots · dashes · radio · wireless · maritime · nautical · broadcast · communication · antenna · frequency
lifeboat
Emergency vessel for survivors
- helicopterRotary-wing aircraft
- coastguardSeafaring emergency responders
- lifesaverEmergency rescue person
paramedic · survivor · ambulance · evacuation · triage · lifeline · recovery · salvage · extrication · medevac
sosall clear
Signal danger has passed
safe and sound · under control · A-OK · smooth sailing · calm
sosall clear
Signal danger has passed
safe and sound · no worries · hello · casual conversation · small talk
- SOS signalsEmergency calls for rescue