MSS
English
Proper noun
MSS
- Initialism of Ministry for State Security or initialism of Ministry of State Security, any of various specific ministries of (or for) state security whose proper name (or its conventionally established English translation) is the capitalized form of that common noun.
- Abbreviation of Merseyside Skeptics Society.
- (historical) Initialism of Microsoft Search Server (enterprise search)
- (historical) Initialism of Mass Storage System (IBM 3850) (tape library)
Noun
MSS (uncountable)
- Initialism of Mars soil simulant.
- Initialism of Milwaukee shoulder syndrome.
Noun
MSS
- Abbreviation of manuscripts; plural of MS.