| Subject | English | Thesaurus |
| railw., abbr. | Central and South West Services Incorporated | CSWX |
| abbr., UN | Economy and Environment Program for South East Asia | EEPSEA (Alexander Oshis) |
| ocean., abbr. | International South Atlantic Buoy Program | ISABP |
| NGO, abbr. | Legal Services of South Central Michigan | LSSCM |
| NGO, abbr. | Legal Services of South- Eastern Michigan | LSSEM |
| abbr. | Science Co-operation Office for South-East Asia | SEASCO |
| interntl.trade., abbr. | South American Trade Services | SATS |
| libr., abbr. | South Carolina Information & Library Services Consortium | STCSC |
| ocean., abbr. | South China Sea Fisheries Development and Coordinating Program | SCSP |
| abbr., scottish | South Pacific Bureau for Economic Co-operation | SPEC |
| tradem., abbr. | South Pacific Information Services | SPIS |
| ocean., abbr. | South Pacific Regional Environment Program | SPREP |
| abbr., astronaut. | South Pacific Regional Environment Programme | SPREP |
| ed., abbr. | South's Traveling Educational Program | STEP |
| st.exch., abbr. | South Trust Corporation options | SHQ |
