The meaning of the Acronym GMS is...

GMS is

• Guild Message System
• Groundwater Modeling System
• Generalized Motion Simulation
• Graphical Modeling System
• Great Mekong Sub
• Great Mutant Skywheel
• The Gordano Messaging Suite
• Gemtec Machinery Services
• George Muscolino And Sons
• Guided Microwave Spectrometer
• Genral Motors Supplier
• Greater Maekong Sub
• Good Morning Shit
• Groovy Male Stud
• Goyishe Music Service
• G Men Starship
• Growling Mad Scientists
• Gemtec Machinery Systems

More Meanings For GMS:

• Geostationary Meteorological Satellite
• Geostationary Meteorology Satellite
• Geostationary Meteorological Satellite
• Gate Millennium Scholar
• Gully Man Screaming
• General Mail System
• Guild Message System
• Groundwater Modeling System
• Generalized Motion Simulation
• Graphical Modeling System
• Great Mekong Sub
• Great Mutant Skywheel
• Good Morning Shit
• Groovy Male Stud
• Goyishe Music Service

GMS is also in:

• Funnies
• Meteorology
• Ocean Science
• Unfiled
• Universities
• USPS