SOS noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of SOS noun from the Oxford Advanced American Dictionary

SOS

noun

NAmE//ˌɛs oʊ ˈɛs//

[singular]

1a signal or message that a ship or plane sends when it needs urgent help to send an SOS an SOS message

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2an urgent request for help We've received an SOS from the area asking for food packages. see Mayday

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