| Subject | English | Thesaurus |
| IT, abbr. | BAY networks' Switched Internetworking Services | BAYSIS |
| mil., abbr. | Defense Red Switched Program | DRSP |
| IT, abbr. | Defense Switched Services | DSS (Mil., USA) |
| telecom., abbr. | Digital Switched Services | DSS |
| abbr., file.ext. | Multiprotocol Switched Services | MSS (IBM) |
| IT, abbr. | Packet Switch Services / Stream | PSS |
| univer., abbr. | Program And Semester Switch | PASS |
| abbr., file.ext. | Stored Program Controlled Switch | SPCS |
| mil., abbr. | Switched Data Services | SDS |
| IT, abbr. | Switched Digital Services Applications Forum | SDSAF (organization) |
| comp., abbr. | User Program Switch Indicator | UPSI |
