I. |eˌsōˈes noun
( -s )
1. : an internationally recognized signal of distress in radio code made of three dots, three dashes, three dots and used especially by ships calling for help
2. : a call or request for help or rescue
sent an SOS home for more cash
II. abbreviation
1. services of supply
2.
[Latin s i o pus s it]
if occasion require