SOS

noun
\ ˌes-(ˌ)ō-ˈes How to pronounce SOS (audio) \

Definition of SOS

1 : an internationally recognized signal of distress in radio code ‧ ‧ ‧ - - - ‧ ‧ ‧ used especially by ships calling for help
2 : a call or request for help or rescue

First Known Use of SOS

1910, in the meaning defined at sense 1

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More Definitions for SOS

SOS

noun

English Language Learners Definition of SOS

: a signal used by ships and airplanes to call for help

SOS

noun
\ ˌes-ō-ˈes How to pronounce SOS (audio) \

Kids Definition of SOS

1 : an international radio code distress signal used especially by ships and airplanes calling for help
2 : a call for help

Medical Definition of SOS

if occasion require; if necessary used in writing prescriptions

History and Etymology for SOS

Latin si opus sit