Massachusetts Abbreviations and Acronyms
- SHSScituate High School
- SHSStoughton High School
- SHSSutton High School
- SHSSouthbridge High School
- SHYCScituate Harbor Yacht Club
- SICSSabis International Charter School
- SJCSupreme Judicial Court
- SJHSSt. John'S High School
- SJHSSt. Johns High School
- SLASouth Lancaster Academy
- SLRHSSilver Lake Regional High School
- SMACSugarloaf Mountain Athletic Club
- SMARTState of Massachusetts Animal Response Team
- SMHSSt. Mary High School
- SMSSt. Mark'c School
- SMSSt. Mark's School
- SNESLSouthern New England School of Law
- SNETTSouthern New England Trunkline Trail
- SOMWBAState Office of Minority and Women Business Assistance
- SORBSex Offender Registry Board
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