M

M (named em ) is the 13th letter of the modern English alphabet and the ISO basic Latin alphabet.

.m is a filename extension that may refer to:

• a MATLAB or GNU Octave file
• a Mathematica package
• an implementation file in Objective-C

A carriage return, sometimes known as a cartridge return and often shortened to CR, <CR> or return, is a control character or mechanism used to reset a device's position to the beginning of a line of text. It is closely associated with the line feed and newline concepts, although it can be considered separately in its own right, as explained further below.

A facepalm (sometimes also face-palm or face palm) is the physical gesture of placing one's hand flat across one's face or lowering one's face into one's hand or hands. The gesture is often exaggerated by giving the motion more force and making a slapping noise when the hand comes in contact with the face. The gesture is found in many cultures as a display of frustration, disappointment, exasperation, embarrassment, horror, shock, surprise, or sarcasm.

The (officially just Mark, sign: M) was the currency used in the German Empire from 1873 to 1914. The Papiermark refers to the German currency from 4 August 1914 when the link between the Mark and gold was abandoned.

In human mitochondrial genetics, Haplogroup M is a human mitochondrial DNA (mtDNA) haplogroup. An enormous haplogroup spanning all the continents, the macro-haplogroup M, like its sibling N, is a descendant of haplogroup L3.

Layout designs (topographies) of integrated circuits are a field in the protection of intellectual property.

M+ is a new museum of visual culture under construction in the West Kowloon Cultural District of Hong Kong. It is scheduled to open in 2019.

Matthieu Chedid (born 21 December 1971, in Boulogne-Billancourt, Hauts-de-Seine, France), better known by his stage name -M- , is a French rock singer-songwriter and guitar player.

The Moderate Party (: "the Moderate Coalition Party", commonly referred to in Swedish as Moderaterna: "the Moderates") is a liberal-conservative political party in Sweden.

(; pl. ; 1512, from Middle French mon sieur, literally "my lord") is an honorific title that 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 respect and term of address for a French-speaking man, corresponding to such English titles as Mr. or sir.

(majuscule: , minuscule: ) is a Latin M with a diacritical tilde. It is or was used as a grapheme in some languages of Vanuatu, such as North Efate, South Efate and Namakura, to represent a . It is also used in the Yanesha and Lithuanian languages. It is also used in the transliteration of the Lycian script.