The meaning of the Acronym SSO is...

SSO is

• System Security Officer
• Support System for OEX
• Space Shuttle Orbiter
• Subsystem Operation (in Spacelab)
• Source Selection Official
• Safety Signification Operation

More Meanings For SSO:

• Single Sign On
• Secondary Significant Other
• Sortof Significant Other
• Source Selecting Official
• Struck Submerged Object
• Student State Officer
• Student Services Office
• Superior Soap Opera
• Soldier Special Ops
• School Support Officer
• Simultaneously Switching Outputs
• Shared Service Organization
• System Security Officer
• School Services Officer
• School Service Officer

SSO is also in:

• Chat
• Firms
• General
• Ocean Science
• Positions
• Security
• Unfiled
• Universities