SOS
noun/ˌes əʊ ˈes/
/ˌes əʊ ˈes/
[singular]- a signal or message that a ship or plane sends when it needs help immediately
- to send an SOS
- an SOS message
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- a serious request for immediate help
- We've received an SOS from the area asking for food parcels.
Word Originearly 20th cent.: letters chosen as being easily transmitted and recognized in Morse code; by folk etymology an abbreviation of save our souls.
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SOS