mayday

[zoria]

mayday мейдей (міжнародний сигнал лиха в голосовому зв'язку); SOS (контекстуально)

Cambridge: a special radio signal sent from a ship or an aircraft when it needs help
Wikipedia: Mayday is an emergency procedure word used internationally as a distress signal in voice-procedure radio communications... The previous distress call had been the Morse code signal SOS, but this was not considered suitable for voice communication, "[o]wing to the difficulty of distinguishing the letter 'S' by telephone"

[Andriy]

дякую, додано