The meaning of the Acronym MSI is...

MSI is

• Microsoft Software Installation
• Mobile Software Initiative
• Man-System Integration

More Meanings For MSI:

• Masonry and Structural Improvements
• Molecular Simulations, Inc.
• Medium Scale Integration
• Music or Speech Item
• Mean Squared Intercept
• Modified Supplemental Instruction
• First year of Military Science
• Minority Serving Institution
• Movie Star, Inc.
• Molecular Simulations, Inc.
• Mayfair Storage Interconnect
• Management Services Incorporated
• Micro Star International
• Metapath Software International
• Multispectral Solutions, Inc.

MSI is also in:

• AMEX Symbols
• Architecture
• Chemistry
• Electronics
• Firms
• Mathematics
• Universities