The meaning of the Acronym SSI is...

SSI is

• Social Security Income
• Supplemental Security Income
• Superior Support Individual

More Meanings For SSI:

• HTML with server side includes
• Small Scale Integration
• Server Side Include
• System Services Interface
• Satellite to Streaming Initiative
• Server System Infrastructure
• Single System Image
• Soil Structure Interaction
• Small Scale Integration
• Solid State Imaging
• Strategic Studies Institute
• Sliding Scale Insulin
• Sore Shoulder Improved
• Software Services, Inc.
• Structural Systems, Inc.

SSI is also in:

• Architecture
• Electronics
• File Extensions
• Firms
• Hardware
• Hospitals
• Networking
• Physiology
• Software
• Universities