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>>Do you own research<<

Michigan State Spartans (college sports)
Managed Security Services (information security)
Ministry of Social Solidarity (various locations)
Municipal Sewage Sludge
Maximum Segment Size (TCP/IP)
Morehouse School of Medicine
Mobile Satellite Services
Multiple Steady State
Manassas (Amtrak station code; Manassas, VA)
Medical Staff Services (various organizations)
Main Street Station
Mass Storage System
Miracle Software Systems (various locations)
Manufacturers Standardization Society
Multiple Sclerosis Society
Membrane-Spanning Segments
Middle School South (various locations)
Mission Support Services (various organizations)
Mother Seton School (Emmitsburg MD)
Management Software System
Mature Student Status (Canada)
Maxim Staffing Solutions (various locations)
Markville Secondary School (Canada)
Mission Support Software
Maximum Super Sport
Multi State System
Mechanical System Simulation
Multiprotocol Switched Server
Managed Storage Services
Mode Swap Sequence
Miles Sound System
Microsoft Sans Serif
Music Search System
Microsoft Speech Server
Microsoft Security Summit
Microsoft Solutions for Security
Managed Storage System
Modular Storage Solution
Mass Storage Systems
Multi Speaker System
Managed Storage Solution
Modular Storage Server
Microsoft Sound System
Managed Security Services
Mobile Satellite Service
Microprocessor Solutions Sector
Multiservice Switching System
Maximum Segment Size
Multi Spectral Scanning
Maxtor Shared Storage
Mission Support Squadron
Multi-Spectral Scanner
Multipurpose Senior Services (elder care)
Microsoft Search Server (software)
Merit System Services
Mobile Servicing System
Ministry of State Security (Chinese counterintelligence organization)
Mobile Switching Centre Server
Mitsubishi Space Software (Japan)
Market Segment Specialization
Mixed-Symmetry State (physics)
Management Support System
Mobile Softswitch Solution (software)
Mystery-Shopping-Survey
Manager of Student Services
Management Supervisory Service (Washington, DC)
Maternal Serum Screening
Material Storage System (Texas)
Management Systems Specialist (various companies)
Medical Surgical Supply
Midwest Sociological Society
Mission Support System
Mechanisms Subsystem (US NASA)
Microsoft Sales Specialist
Mechanical Support System
Magnetic Single Shot (camera system)
Mainzer Studienstufe
Midwest Sprintcar Series
Maritime Satellite Service
Multispectral Scanner System
Metrocrest Social Services (Farmers Branch, TX)
Market Stabilization Scheme (Reserve Bank of India)
Management System Standard
Master of Space Studies
Marinesco-Sjogren Syndrome
Member of the Same Sex
Message Switching System
M.S. Swaminathan (Indian agricultural scientist)
Meteorological Satellite Subsystem (US DoD)
Master of Social Science
Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. (also seen as MSSVF)
Military Sensing Symposia
Mobile Soft Switch
Multiprotocol Switched Services (IBM)
Medical Support Services
Ministry of Social Services (replaced by Ministry of Human Resources and Social Development, Canada)
Member Satisfaction Survey (various organizations)
Metro Spy Supply (Alabama)
Master of Social Service (degree)
Marketing Support Services (New Richmond, OH; est. 1987)
Mobile Support Station
Magnetostrictive Sensor
Management Systems Solutions
Market Street Solutions (Chattanooga, TN)
Marshall-Smith Syndrome
Message Storage Server (Avaya)
Massena, NY, USA (Airport Code)
Mobile Service Structure
Microprocessor Solutions Sector (various organizations)
Master of Strategic Studies
Municipal Support Services (various locations)
Manufacturing Support Service
Midlands Security Systems (UK)
Multi-State System
MAN Switching System (Seimens/Stromberg Carlson)
Midland Secondary School (Canada)
Minesweeper, Special (Device)
Minimum Service Standards
Maintenance Subsystem
Market Segment Share
Mohammed Saeed al-Sahaf (former Iraqi Minister of Information)
Magnetic Sensing System
Mission Sequence Subsystem (US NASA)
Metropolitan Switching System
Market Survey System
Modify System State
Medical Student Society
Maximum Signal Strength
Monash Science Society (Monash University, Australia)
Mission Support Site (US military special forces)
Montfort Secondary School
Master-Slave Synchronization
Mutual Separation Scheme (Malaysia)
Mobility Services Suite (Symbol Technologies)
Modular Space Station
Mobile Support System
Manic Syndrome Scale
Maintenance, Start-Up, and Shutdown (Texas Commission on Environemental Quality)
Mechanical Systems Simulation
Measurement and Stimulus Subsystem
Memphis Soaring Society (aviation)
Mobile Switching Station
Mobile Servicing Station (space station)
Missile System Supervisor
Medical Service Specialist (USAF)
Microsoft Support Services
Management Statistics Subsystem
Marine Scout Sniper
Marine Safety and Security
Motion Sensing System
Military Supply Standard
Mine Search System
Millimeter Simulation System
Missile Security Squadron
Mechanically Separated Species
Merrimac State School (Gold Coast, Australia)
Meteorological Sounding Systems
Maintenance Service Supplier
Maximum-Shear-Stress Theory (mechanical engineering)
Materials Science in Space
Mission Systems Sector
Mudgeeraba Special School (Gold Coast, Australia)
Medium Sun Sensor
Meterological Satellite System
Missile Surface-to-Surface
Modular Simulator System
Missionaries of the Blessed Sacrament (religious order)
Maximum Soil Slope
Mudgeeraba State School (Gold Coast, Australia)
Major Shore Spares
Manav Sthali School (New Delhi, India)
maritime security surge (operations)
Market Share System (US Army recruiting)
Modified Scram System
Mission Scheduling System (NASA)
Miami State School (Gold Coast, Australia)
Military Supply Standards
Middle Stage Switch
Main Shaft Speed
Message Support Subsystem
Measure and Support Services (Sprint)
Mechanized Specification System
Mechanical and Structural Subsystems
McKeesport Symphony Society (McKeesport, Pennsylvania)
Microprocessor System Status
Matrix Switch System
Manual Stack Survey (emissions)
Muscle Signs and Symptoms
Mixed Signal Solutions, Inc. (Glen Ellyn, IL)
Moored/Mobile Surveillance System
Mormon Scripture Studies
Marine Salt Solution
Multimedia Synchronization Server (Empirix)
Manufacturing Services Sector
Mississippi Space Service
Materiel Support System