noun: (computing) Initialism of Server Side Include. [(computing) A server-side directive in a certain scripting language used on the World Wide Web, allowing the contents of external files to be included at specified points within a web page.]
noun: (US) Initialism of Supplemental Security Income.
noun: (electronics) Initialism of Small Scale Integration. [(electronics) an integration type for digital circuits that contain transistors numbering in the tens providing a few logic gates per chip]
noun: (military, US) Initialism of shoulder sleeve insignia.
noun: (finance) Initialism of standard settlement instruction.
noun: (medicine) Initialism of surgical site infection.
noun: (sports) Initialism of Scuba Schools International.