| Acronym | Definition |
|---|
| MOS➣Months |
| MOS➣Military Occupational Specialty (US Army) |
| MOS➣Metal-Oxide Semiconductor |
| MOS➣Microsoft Office Specialist |
| MOS➣Mean Opinion Score |
| MOS➣Ministry of Sound (London Night Club) |
| MOS➣Museum of Science (Boston, MA) |
| MOS➣Man of Steel (aka The Man of Steel; also seen as TMOS) |
| MOS➣Man On the Street (type of interview) |
| MOS➣Margin of Safety |
| MOS➣Manual of Style |
| MOS➣Mates of State (band) |
| MOS➣My Oracle Support (software) |
| MOS➣Mambo Open Source |
| MOS➣Miracle of Science (science fiction) |
| MOS➣Material On Site |
| MOS➣Medical Outcomes Study |
| MOS➣Moment of Silence |
| MOS➣Motorways of the Sea (EU) |
| MOS➣Model Output Statistics |
| MOS➣Measure of Success (Joint Commission; Oakbrook Terrace, IL) |
| MOS➣Master Operating System |
| MOS➣Magneto Optic Storage |
| MOS➣Mobile Office System |
| MOS➣Mission Operation System |
| MOS➣Minimum Operating System |
| MOS➣Mobile Office Support |
| MOS➣Metal Oxide Semiconductor |
| MOS➣Managed Objects |
| MOS➣Multiuser Operating System |
| MOS➣Multiprogramming Operating System |
| MOS➣Modular Optical Scanner |
| MOS➣Mobile Office Suite |
| MOS➣Management Operating System |
| MOS➣Metal-Oxide-Silicon |
| MOS➣Motor Operated Switch |
| MOS➣Made of Steel |
| MOS➣Mission Operations System (US NASA) |
| MOS➣Military One Source (US DoD) |
| MOS➣Member of the Opposite Sex |
| MOS➣Medical Office Specialist |
| MOS➣Maryland Ornithological Society (Baltimore, MD) |
| MOS➣Mobile Operating System |
| MOS➣Maintenance Operations Squadron |
| MOS➣Mother of Sorrows (New York Catholic school) |
| MOS➣Multi-Object Spectrograph |
| MOS➣Marine Observation Satellite |
| MOS➣Mom over Shoulder (texting; aka Mother over Shoulder) |
| MOS➣Macintosh Operating System |
| MOS➣Media Object Server |
| MOS➣Multi-Object Spectrometer |
| MOS➣Minimum Operable Segment (rail transit construction planning; various locations) |
| MOS➣Married out of Society (Quaker religion) |
| MOS➣Multimedia Operating System (First Virtual Corporation) |
| MOS➣Mu Online Server |
| MOS➣Member of the Service (NYPD Sworn Officer) |
| MOS➣Monthly Oil and Gas Statistics (database) |
| MOS➣Make Out Session |
| MOS➣Matter of Size |
| MOS➣Manual of Standards |
| MOS➣Medical Office Software, Inc. (Fort Lauderdale, FL) |
| MOS➣Monthly Operational Summary |
| MOS➣Managed Office Solutions (UK) |
| MOS➣Member of Service (police) |
| MOS➣Mittelstandskinder Ohne Strom (band, German: Middle-Class Children Without Energy) |
| MOS➣Michigan Office Solutions (est. 1957) |
| MOS➣Mission of Service |
| MOS➣Major Orthopedic Surgery |
| MOS➣Minimum Operating Strip |
| MOS➣Mic-O-Say (Honor Camping Society of the Heart of America Council, Boy Scouts of America) |
| MOS➣Mic-O-Say (Tribe) |
| MOS➣Margin on Services (insurance) |
| MOS➣MIDS on Ship (Multifunctional Information Distribution System) |
| MOS➣Method of Statement |
| MOS➣Mode Of Shipment |
| MOS➣Mini Operating System |
| MOS➣Major Operating System |
| MOS➣Multi-Beam Optical Sensor |
| MOS➣Michael O'Neal Singers (Roswell, GA) |
| MOS➣Marineoperationsschule (German Navy school) |
| MOS➣Mother of Our Savior (Detroit, MI grade school, now defunct) |
| MOS➣Military Occupation Skill |
| MOS➣Massachusetts Orchid Society |
| MOS➣Michigan Orchid Society (Ann Arbor, MI) |
| MOS➣Method Of Supply |
| MOS➣Mobility Operations School |
| MOS➣My Own Science (education program) |
| MOS➣Military Operations Specialist (FAA) |
| MOS➣Metal Oxide Substrate |
| MOS➣Managed Operations Services (various companies) |
| MOS➣Mountain Ocean Sea (Japanese burger chain) |
| MOS➣Maintenance Out of Service |
| MOS➣Manually Operated Switch (railroads) |
| MOS➣Minimum Operating Standard |
| MOS➣Maritime Observation Satellite |
| MOS➣Motion Omit Sound (TV term for silent film or tape) |
| MOS➣Mute on Sound |
| MOS➣Manned Orbital Station |
| MOS➣Minimum Operational Sensitivity |
| MOS➣Maintenance Override Switch |
| MOS➣Marked Out of Stock |
| MOS➣Management Operations Staff |
| MOS➣Marine Occupational Standard |
| MOS➣Military Oceanography Subcommittee |
| MOS➣Manual Observing System |
| MOS➣Mapping Ocean Sanctuaries (Center for Image Processing in Education) |
| MOS➣Malibu Orchid Society, Inc. |
| MOS➣Mit Out Sprechen/Sound (without speech; German/English movie term for shot without dialog) |
| MOS➣Measure Of Suitability/Stability |
| MOS➣Minus Optical Strip (acting) |
| MOS➣Madonna of the Streets |
| MOS➣MANTIS (Multimodal Networks of In-Situ Sensors) Operating System (open source software) |
| MOS➣Material Ordering Schedule |
| MOS➣Materials Ordering System |
| MOS➣Military Obligated Service |
| MOS➣Modulated Orthogonal Sequence |
| MOS➣Mission Operational Specialty |
| MOS➣Morph Operating System |
| MOS➣Main Object Size |
| MOS➣Multifunctional Operator System |
| MOS➣Multiplex Out of Sync (Hekimian) |
| MOS➣Movable Oil Saturation |
| MOS➣Monitor Only Stations |
| MOS➣Manually Out of Service |
| MOS➣Modine Operating System (Modine Manufacturing Co.) |
| MOS➣Modetti Office Services (Singapore) |