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SOS

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noun \ˌes-(ˌ)ō-ˈes\

Simple Definition of SOS

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of SOS

  1. 1 :  an internationally recognized signal of distress in radio code ‧ ‧ ‧ - - - ‧ ‧ ‧ used especially by ships calling for help

  2. 2 :  a call or request for help or rescue

1910

First Known Use of sos

1910


Medical Dictionary

SOS

abbreviation

Medical Definition of SOS

  1. if occasion require; if necessary—used in writing prescriptions



Origin and Etymology of sos

Latin si opus sit


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