Definition of SOS noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˌes əʊ ˈes//
    ; NAmE NAmE//ˌes ˈes//
    [singular] Travelling by boat or ship
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  1. 1a signal or message that a ship or plane sends when it needs urgent help to send an SOS an SOS message See related entries: Travelling by boat or ship
  2. 2an urgent request for help We've received an SOS from the area asking for food parcels. see also Mayday
  3. Word Originearly 20th cent.: letters chosen as being easily transmitted and recognized in Morse code; by folk etymology an abbreviation of save our souls.
See the Oxford Advanced American Dictionary entry: SOS

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