 | /M |
 | /MM |
 | Baldridge Award |
 | M18N |
 | MACH |
 | Machinable |
 | Machinable Parcel |
 | Machine-Aided Translation |
 | Machine Capability Index (Cmk) |
 | Machine Interpretation (MI) |
 | Machine Readable |
 | Machine Translation (MT) |
 | Machine Translation Plus Translation Memory (MTM) |
 | Made-Up Mail |
 | Magalogue |
 | Magic Arrow |
 | Magnetic Tape |
 | Magnetic Tape Charge |
 | Maiden name |
 | Mail |
 | Mail (Piece) Volume |
 | Mailback Service |
 | Mailbag |
 | Mailbox |
 | Mailchute |
 | Mail Class |
 | Mail Condition Report |
 | Mail Count |
 | Mail Cover |
 | Mail Date |
 | Mail Dollar Sales |
 | Mailer |
 | Mailer Direct Commission |
 | Mailer identifier |
 | Mailer Service Bureau |
 | Mailers Technical Advisory Committee (MTAC) |
 | Mail Fraud |
 | Mailgram |
 | Mail Handler |
 | Mailing |
 | Mailing addresses |
 | Mailing Agent |
 | Mailing date |
 | Mailing fee |
 | Mailing House |
 | Mailing List |
 | Mailing List Service |
 | Mailing Package |
 | Mailing Preference Service, The (MPS) |
 | Mailing software |
 | Mailing Statement |
 | Mail Monitoring |
 | Mail Order |
 | Mail Order Buyer |
 | Mailpiece |
 | Mailpiece Quality Control (MQC) |
 | Mail Plan |
 | Mailpouch |
 | Mail Preference Service |
 | Mail Preparation Unit |
 | Mail Priority |
 | Mail Processing |
 | Mail Processing Category |
 | Mail Processing Equipment |
 | Mail Processing Work Credit System (MPWCS) |
 | Mail Receptacle |
 | Mail Recovery Center (MRC) |
 | Mailsack |
 | Mail Server |
 | Mail Shop |
 | Mailsort |
 | Mailstop |
 | Mail Stop Order |
 | Mailstream |
 | Mail Transport Equipment (MTE) |
 | Mail Transport Equipment Service Center (MTESC) |
 | Main Effect |
 | Mainframe |
 | Main Post Office (MPO) |
 | Main Stock |
 | Maintainability |
 | Major Entity |
 | Make Up |
 | Malicious Code |
 | Mallows Statistics (C-p) |
 | Manageability |
 | Managed Availability |
 | Managed Mail (MM) Tray |
 | Managed Mail Program (MMP) |
 | Management |
 | Management by Knowledge |
 | Management Fee |
 | Management Instruction (MI) |
 | Management Operating Data System (MODS) |
 | Management principle |
 | Management Review |
 | Management Review Board (MRB) |
 | Management Sectional Center (MSC) |
 | Management System |
 | Management Systems Review (MSR) |
 | Manager |
 | Managerial information steward |
 | Managerial Information Stewardship |
 | Mandatory Access Control (MAC) |
 | Manifest Mailing System (MMS) |
 | Manifold Book |
 | Man-in-the-Middle Attacks (MITM) |
 | Manpower Scheduling and Staffing Program (MSSP) |
 | Manual |
 | Manual Distribution |
 | Manufacturing Resource Planning (MRP) |
 | Many-to-Many Relationship |
 | Map |
 | Map+Measure, Explore+Evaluate, Define+Descibe, Implement+Improve, Control+Conform (MEDIC) |
 | Map Projection |
 | Map Scale |
 | Marginal List Test |
 | Marginal Marking |
 | Market |
 | Market Basket |
 | Market Convergence |
 | Marketing Information Network (MIN) |
 | Marketing Mix |
 | Market Penetration |
 | Market Potential |
 | Market Research |
 | Market Resource Management (MRM) |
 | Market Segmentation |
 | Market Share |
 | Mark II |
 | Marking |
 | Markov Model |
 | Mark Sense |
 | Markup |
 | Markup-Aware |
 | Markup Language |
 | Marriage Mail |
 | Mashup |
 | Mass |
 | Mass Customization |
 | Massing Point |
 | Massing Scheme |
 | Massively Parallel Processing (MPP) |
 | Mass Marketing |
 | Mass Media |
 | Mass Spectrometer |
 | Mass Spectrometry |
 | Mass Spectrum |
 | Master Black Belt |
 | Master Data |
 | Master Data Management (MDM) |
 | Master File / Masterfile |
 | Master Production Schedule (MPS) |
 | Master Table |
 | Match |
 | Matchcode / Match Code |
 | Match Definition |
 | Matched City Pairs |
 | Matching |
 | Match Key |
 | Match Rate |
 | Material Distribution Center (MDC) |
 | Material Requirements Planning (MRP) |
 | Matrix |
 | Matrix Duplicates |
 | Matronymic |
 | Maximum Cost per Order |
 | Maximum Size Standards |
 | M-Bag |
 | M-Commerce / Mobile Commerce / mCommerce |
 | MD5 |
 | Mean |
 | Meaning-for-Meaning Translation |
 | Mean Squared Error |
 | Mean Time Between Failures (MTBF) |
 | Mean Time to Repair (MTTR) |
 | Measure |
 | Measurement |
 | Measurement and Testing Equipment (M&TE) |
 | Measurement curve bundle |
 | Measurement system |
 | Measurement System Analysis (MSA) |
 | Measuring Equipment |
 | Mechanical Addressing Systems |
 | Mechanical Reject |
 | Mechanism |
 | Media |
 | Media Channel |
 | Median |
 | Median Demographic Data |
 | Medium |
 | Megabyte (MB) |
 | Mega-Language |
 | Member |
 | Member Get Member |
 | Member Property |
 | Memorandum of Agreement (MOA) |
 | Memory |
 | Memory Effects Error |
 | Menu |
 | Merchandise Return Service |
 | Merchandise Sample |
 | Merge |
 | Merge/Purge |
 | Merge Tag |
 | Merging |
 | Message Broker |
 | Metabase |
 | Meta Data / Metadata |
 | Metadata Administrator |
 | Metadata Dataset |
 | Metadata Entity |
 | Meta Data Repository / Metadata Repository |
 | Metadata Schema |
 | Metadata Section |
 | Metadata Synchronization / Meta data Synchronization |
 | Metadata Translator |
 | Metadata Warehouse |
 | Meta Muck |
 | Meta-tags |
 | Metered Mail |
 | Metered Postage |
 | Meter Reply Mail (MRM) |
 | Meter Stamp |
 | Meter Tape |
 | Method |
 | Method 653 |
 | Method Blank |
 | Method Detection Limit |
 | Method of Attribute |
 | Method of Payment |
 | Methodology |
 | Methods Improvement Program - Standard Operating Procedure (MIP-SOP) |
 | Metric / Metrics |
 | Metricationist |
 | Metrology |
 | Micro Mark |
 | Microsimulation |
 | Middleware |
 | Mid-Range Check |
 | Mid rank |
 | Mid-Tier Data Warehouses |
 | Migratory-Bird Hunting and Conservation Stamp |
 | Milestone |
 | Military Lists |
 | Military Mail |
 | Military Ordinary Mail (MOM) |
 | Military Post Office (MPO) |
 | Military Post Office Cancellation |
 | Millenials |
 | Million Instructions per Second (MIPS) |
 | Minicatalog |
 | Mini Marts |
 | Minimum |
 | Minimum Order Fee |
 | Minimum Order Requirement |
 | Minimum Size Standard |
 | Mining |
 | Mint Set |
 | Minutes per Month (MPM) |
 | Mirroring |
 | Miscoded/Miszipped Mail |
 | Misinformation |
 | Misinterpretation |
 | Missent/Misdirected Mail |
 | Missing value |
 | Mission |
 | Missort/Missorted Mail |
 | Mixed Class |
 | Mixed Waste |
 | Mobile Code |
 | Mobile Post Office |
 | Mobile Vehicle Repair Facility (MVRF) |
 | Mobility Rate |
 | Modal interval |
 | Mode |
 | Model Base |
 | Model-Driven Architecture |
 | Modeling |
 | Modeling/Modelling |
 | Modeling Language |
 | Modeling Tools |
 | Model-View-Controller (MVC) |
 | Modular Arrangements of Predetermined Time Standards (MODAPTS) |
 | Modulator, Demodulator (MODEM) |
 | Module |
 | Moment of truth |
 | Monetary Value |
 | Money Order |
 | Monte Carlo |
 | Moods Median |
 | Morpheme |
 | Morphology |
 | Mortality Processing |
 | Mortality Suppression |
 | Mortascreen |
 | Mother Tongue |
 | Motorist Mailchute |
 | Motorized Carrier |
 | Motor Vehicle Operator (MVO) |
 | Mounted Route |
 | Muda |
 | Multi-Buyer |
 | Multibuyers |
 | Multi-byte Character Set (MBCS) |
 | Multi-byte Language |
 | Multichannel |
 | Multi-Channel Marketer |
 | Multi-Channel Marketing |
 | Multicolinearity |
 | Multicommodity Machine (MCM) |
 | Multiculturalization / Multiculturalisation |
 | Multidimensional Analysis / Multi-Dimensional Analysis |
 | Multidimensional Array |
 | Multidimensional database (MDDB) / Multi-Dimensional Database |
 | Multidimensional Database Management System (MDBMS) |
 | Multidimensional Expressions (MDX) |
 | Multidimensional Online Analytical Programming (MOLAP) |
 | Multidimensional Query Language |
 | Multi-Language Vendor (MLV) |
 | Multi-level Security |
 | Multiline Accuracy Support System (MASS) |
 | Multiline Optical Character Reader (MLOCR) |
 | Multilingual Workflow |
 | Multimedia |
 | Multimedia Data |
 | Multimedia Messaging Service (MMS) |
 | Multinationalization / Multinationalisation (M18N) |
 | Multi-part E-mail |
 | Multiple Buyers |
 | Multiple Dimension Processing |
 | Multiple Dwelling |
 | Multiple Entry Point Payment System (MEPPS) |
 | Multiple Language Vendor |
 | Multiple Regression Analysis |
 | Multiple Sampling |
 | Multiple SICs |
 | Multiposition Flat Sorting Machine (MPFSM) |
 | Multiposition Letter Sorting Machine (MPLSM) |
 | Multivalue Attribute |
 | Multi Vari Analysis |
 | Multivariate Control Chart |
 | Multivariate Testing |
 | Multi-Vari Chart |
 | Mura |
 | Muri |
 | Must |
 | Mutual Authentication |
 | MXD |
 | MySQL |