MM or variants may refer to:

Alphabets

Meitei Mayek The Meitei script (), also known as the Kanglei script () or the Kok Sam Lai script (), after its first three letters is an abugida in the Brahmic scripts family used to write the Meitei language, the official language of Manipur, Assam an ...

or Meetei Mayek, the writing system of Meitei language

Arts, entertainment, and media

Music

* ''MM'' (album), 1989, by Marisa Monte * Maelzel's metronome, a music marking *

Marilyn Manson Brian Hugh Warner (born January 5, 1969), known professionally as Marilyn Manson, is an American rock musician. He is the lead singer and the only original member remaining of the Marilyn Manson (band), same-titled band he founded in 1989. Th ...

, an American musician * Marshall Mathers, an American rapper (a.k.a. "Eminem") * Mother Mother, a Canadian band *

Master of Music The Master of Music (MM or MMus) is, as an academic title, the first graduate degree in music awarded by universities and conservatories. The MM combines advanced studies in an applied area of specialization (usually performance in singing or i ...

, an academic degree * ''

Melody Maker ''Melody Maker'' was a British weekly music magazine, one of the world's earliest music weeklies; according to its publisher, IPC Media, the earliest. In January 2001, it was merged into "long-standing rival" (and IPC Media sister publicatio ...

'' British music publication * "MM", a 1993 song by Mr. President * Major Moment, an American rock music band from Boston, Massachusetts

Television

* MM (TV channel), Bulgaria * MM, the production code for the 1967 ''Doctor Who'' serial '' The Tomb of the Cybermen''

Other media

* '' MM!'', a Japanese light novel, manga and anime series by Akinari Matsuno * '' Media Molecule'', a video game developer in England * ''

Monster Manual The ''Monster Manual'' (''MM'') is the primary bestiary sourcebook for monsters in the ''Dungeons & Dragons'' (''D&D'') fantasy role-playing game, first published in 1977 by TSR. The ''Monster Manual'' was the first hardcover ''D&D'' book and ...

'', a 1977 ''Dungeons & Dragons'' source book * Mother's Milk (character), aka "MM", a fictional character in ''The Boys'' comicbook franchise

Businesses, organizations, and teams

Middle-market company A middle-market or mid-market company is one that is larger than a small business and smaller than a big business. Different authorities use different metrics to compare company sizes — some look at revenue, others at either asset size or number ...

or mid-market companies have annual revenues of $50 million to $1 billion or between 100 and 1000 employees *

Maryknoll Maryknoll is a Catholic non-profit mission movement consisting of four organizations. Together, they work as missioners around the world as Lay People, Priests, Brothers and Sisters. Mary's Knoll to Maryknoll In 1912, the Catholic Foreign Missi ...

, a Catholic religious institute *

Maybach-Motorenbau GmbH Maybach (, ) is a Automotive industry in Germany, German luxury car brand owned by and a part of Mercedes-Benz AG. The original company was founded in 1909 by Wilhelm Maybach and his son Karl Maybach, originally as a subsidiary of ''Luftschiffb ...

and Maybach-Manufaktur and Mercedes-Maybach; an engine and car marque *

Moderation Management Moderation Management (MM) is a secular non-profit organization providing peer-run support groups for anyone who would like to reduce their alcohol consumption. MM was founded in 1994 to create an alternative to Alcoholics Anonymous and similar a ...

, alcohol support group * Mumbai Magicians, a defunct Hockey India League franchise *

Peach (airline) , operating as Peach, is a Japanese low-cost airline. Its head office is at Kansai International Airport and in Tajiri, Osaka Prefecture. History Peach was formed in February 2011 as A&F Aviation, a joint venture between All Nippon Airways ...

(IATA code: MM) *

SAM Colombia SAM (Spanish language, Spanish acronym: ''Sociedad Aeronáutica de Medellín'') was a Colombian airline. With its main hub at El Dorado International Airport in Bogotá, SAM operated domestic and international routes and was a subsidiary of Avian ...

(former IATA code: MM) * MM, logo of the

Leipzig Trade Fair The Leipzig Trade Fair () is a major trade fair, which traces its roots back for nearly a millennium. After the Second World War, Leipzig fell within the territory of East Germany, whereupon the Leipzig Trade Fair became one of the most importan ...

abbreviation for ''Mustermesse'' (English: Sample fair)

Degrees, honorifics, and titles

Machinist's Mate Machinist's Mate (or MM) is a List of United States Navy ratings, rating in the United States Navy's engineering community. It is non-capitalised as machinist's mate when discussing the generic rating rather than as a proper noun when discussing a ...

in the US Navy *

Master mariner A master mariner is a licensed mariner who holds the highest grade of licensed seafarer qualification; namely, a master's license. A master mariner is therefore allowed to serve as the captain (nautical), master of a merchant ship for which natio ...

Master of Management The Master of Management (MM, MiM, MMgt) is a master's degree comprising one or two years graduate level coursework in business management. In terms of content, it is similar to the Master of Business Administration (MBA) degree as it contain ...

, a degree *

Master of Medicine Master of Medicine (MMed, MM) is a postgraduate professional clinical degree awarded by medical schools to physicians following a period of instruction, supervised clinical rotations, and examination. As of May 2009, the following universities ...

, a degree *

Military Medal The Military Medal (MM) was a military decoration awarded to personnel of the British Army and other arms of the British Armed Forces, armed forces, and to personnel of other Commonwealth of Nations, Commonwealth countries, below commissioned o ...

, British and Commonwealth *

Minister Mentor Minister Mentor was a position in the Cabinet of Singapore created in 2004 as part of a transition in political leadership. The only person to hold the post, between 2004 and 2011, was Lee Kuan Yew. Background On 12 August 2004, when Lee Hsien ...

, a Singapore cabinet position * ''

messieurs ( ; ; pl. ; ; 1512, from Middle French , literally "my lord") is an honorific title that was used to refer to or address the eldest living brother of the king in the French royal court. It has now become the customary French title of respe ...

'', a plural honorific in French

Latinisms

2000 (number) 2000 (two thousand) is a natural number following 1999 and preceding 2001. It is: :*the highest number expressible using only two unmodified characters in Roman numerals (MM) :*an Achilles number :*smallest four digit eban number :*the sum ...

in Roman numerals * The year

2000 2000 was designated as the International Year for the Culture of Peace and the World Mathematics, Mathematical Year. Popular culture holds the year 2000 as the first year of the 21st century and the 3rd millennium, because of a tende ...

in Roman numerals * ''

Mutatis mutandis ''Mutatis mutandis'' is a Medieval Latin phrase meaning "with things changed that should be changed" or "once the necessary changes have been made", literally: having been changed, going to be changed. It continues to be seen as a foreign-origin ...

'' ("''m.m.''"), "with things changed that should be changed"

Transportation

* MM (New York City Subway service), a former New York City Subway service

Places

Metro Manila Metropolitan Manila ( ), commonly shortened to Metro Manila and formally the National Capital Region (NCR; ), is the capital region and largest List of metropolitan areas in the Philippines, metropolitan area of the Philippines. Located ...

, the Philippines' national capital region **

Mega Manila Mega Manila is a megalopolis on the island of Luzon in the Philippines. There are varying definitions of the megalopolis, but it is generally seen as encompassing the administrative regions of Central Luzon, Calabarzon, and Metro Manila. On so ...

, its larger metropolis *

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

(ISO 3166-1 country code: MM)

Science, technology, and mathematics

Computing

* .mm, Internet country code top-level domain for Myanmar * ".mm", the file extension for

FreeMind FreeMind is a free mind mapping application written in Java, which is further developed by the fork Freeplane. FreeMind itself was last updated in 2014. FreeMind is licensed under the GNU General Public License Version 2. It provides extensive ...

and

Freeplane Freeplane is a free, open source software application for creating mind maps (diagrams of connections between ideas), and electronic outlines. Written in Java, it is supported on Windows, Mac OS X and Linux, and is licensed under the GNU GPL ver ...

data files * ".mm", the file extension for source code files of

Objective-C++ Objective-C is a high-level general-purpose, object-oriented programming language that adds Smalltalk-style message passing (messaging) to the C (programming language), C programming language. Originally developed by Brad Cox and Tom Love in ...

* mm tree, the Andrew Morton's Linux kernel tree * MM algorithm, an iterative method for constructing optimization algorithms * Columbia MM, an early e-mail client *

Multiple master fonts Multiple master fonts (or MM fonts) are an extension to Adobe Systems' Type 1 PostScript fonts, now superseded by the advent of OpenType and, in particular, the introduction of OpenType Font Variations in OpenType 1.8, also called variable fonts ...

* Mattermost, an online chat service

Units of measurement

Megametre The following are examples of orders of magnitude for different lengths. Overview Detailed list To help compare different orders of magnitude, the following list describes various lengths between 1.6 \times 10^ metres and 10^metres. ...

(Mm) (rare) 1,000km *

Mile Marker A milestone is a numbered marker placed on a route such as a road, railway, railway line, canal or border, boundary. They can indicate the distance to towns, cities, and other places or landmarks like Mileage sign, mileage signs; or they c ...

(MM) *

Millimetre 330px, Different lengths as in respect of the electromagnetic spectrum, measured by the metre and its derived scales. The microwave is between 1 metre to 1 millimetre. The millimetre (American and British English spelling differences#-re, -er, i ...

(mm) *

Millimolar Molar concentration (also called molarity, amount concentration or substance concentration) is the number of moles of solute per liter of solution. Specifically, It is a measure of the concentration of a chemical species, in particular, of a so ...

(mM), a unit of concentration of a solution *

Momme Momme may refer to: * Momme Andresen (1857–1951), German industrial research chemist * Momme Peterson (1771–1835), Danish-Norwegian businessperson and politician * Momme (unit), a Japanese historic unit of weight, or units based on it: ** A ...

, a unit of textile measurement * One

million 1,000,000 (one million), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian ''millione'' (''milione'' in modern Italian), from ''mille'', "thousand", plus the ...

(MM), used in reference to currency * Percent concentration by mass (m/m%, %m/m, or m%), a unit of relative mass concentration

Other uses in science, technology, and mathematics

Minimax Minimax (sometimes Minmax, MM or saddle point) is a decision rule used in artificial intelligence, decision theory, combinatorial game theory, statistics, and philosophy for ''minimizing'' the possible loss function, loss for a Worst-case scenari ...

or maximin, a decision rule * Modified Mercalli scale for earthquake intensity *

Molecular mechanics Molecular mechanics uses classical mechanics to model molecular systems. The Born–Oppenheimer approximation is assumed valid and the potential energy of all systems is calculated as a function of the nuclear coordinates using Force field (chemi ...

, computational chemistry technique * Moving magnet, phonograph cartridge type * Moving mean in statistics *

Multiple myeloma Multiple myeloma (MM), also known as plasma cell myeloma and simply myeloma, is a cancer of plasma cells, a type of white blood cell that normally produces antibody, antibodies. Often, no symptoms are noticed initially. As it progresses, bone ...

, blood cancer *

Mischmetal Mischmetal (from – "mixed metal") is an alloy of rare-earth elements. It is also called cerium mischmetal, or rare-earth mischmetal. A typical composition includes approximately 55% cerium, 25% lanthanum, and 15~18% neodymium ...

, alloy of similar lanthanoids