M

This article is about the letter of the Roman alphabet. For the letter of the Cyrillic script (М, м), see Em (Cyrillic). For the letter of the Greek script (Μ, μ), see Mu (letter). For other uses, see M (disambiguation).

For technical reasons, "M#" redirects here. For the programming language, see M Sharp.

Not to be confused with ញ, ᛖ, ₥, ℳ, ෆ, or ʍ.

M or m is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide. Its name in English is em (pronounced /ˈɛm/), plural ems.^[1]

M
M m
Usage
Writing system	Latin script
Type	Alphabetic and Logographic
Language of origin	Latin language
Sound values	[m] [ɱ] [n] [n̼] /ɛm/
In Unicode	U+004D, U+006D
Alphabetical position	13 Numerical value: 1000
History
Development	Μ μ 𐌌 M m
Time period	~−700 to present
Descendants	₥ ™℠ ᴟ ꬺ ꟽ ɯ ɰ ꟿ ᛗ
Sisters	М Ӎ מ ם م ܡ מּ ﬦ Ⰿ ࠌ 𐌼
Other
Associated graphs	m(x)
Associated numbers	1000
Writing direction	Left-to-right
This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

History

Egyptian hieroglyph "n"	Phoenician Mem	Western Greek Mu	Etruscan M	Latin M

The letter M is derived from the Phoenician Mem via the Greek Mu (Μ, μ). Semitic Mem is most likely derived from a "Proto-Sinaitic" (Bronze Age) adoption of the "water" ideogram in Egyptian writing. The Egyptian sign had the acrophonic value /n/, from the Egyptian word for "water", nt; the adoption as the Semitic letter for /m/ was presumably also on acrophonic grounds, from the Semitic word for "water", *mā(y)-.^[2]

Use in writing systems

Pronunciation of ⟨m⟩ by language

Orthography	Phonemes
Standard Chinese (Pinyin)	/m/
English	/m/, silent
French	/m/
German	/m/
Portuguese	/m/, silent
Spanish	/m/
Turkish	/m/

English

In English, ⟨m⟩ represents the voiced bilabial nasal /m/.

The Oxford English Dictionary (first edition) says that ⟨m⟩ is sometimes a vowel, such as in words like spasm and in the suffix -ism. In modern terminology, this is described as a syllabic consonant (IPA: /m̩/).

M is the fourteenth most frequently used letter in the English language.

Other languages

The letter ⟨m⟩ represents the voiced bilabial nasal /m/ in the orthography of Latin as well as in those of many modern languages.

In Washo, lower-case ⟨m⟩ represents a voiced bilabial nasal /m/, while upper-case ⟨M⟩ represents a voiceless bilabial nasal /m̥/.

Other systems

In the International Phonetic Alphabet, ⟨m⟩ represents the voiced bilabial nasal /m/.

Other uses

Main article: M (disambiguation)

Styled letter M in the coat of arms of Miehikkälä

• The Roman numeral M represents the number 1000, though it was not used in Roman times. There is, however, scant evidence that the letter was later introduced in the early centuries A.D. by the Romans.^[3]
• Unit prefix M (mega), meaning one million times, and m (milli) meaning one-thousandth.^[4][5]
• m is the standard abbreviation for metre (or meter) in the International System of Units (SI).^[4] However, m is also used as an abbreviation for mile.^[5]
• M is used as the unit abbreviation for molarity.^[4]
• With money amounts, m or M is ambiguous. In the finance industry,^[6] m or M means 1,000. In this context, five million dollars is written $5mm or $5MM. Outside of finance, some people use M like the metric system "mega-" to mean one million and write $5M.^[4][5]
• M often represents male or masculine, especially in conjunction with F for female or feminine.^[4][5]
• In typography, an em dash is a punctuation symbol whose width is similar to that of a capital letter M.
• M is used as a logo by many rapid transit systems, standing for "Metro" (or equivalents in other languages.)

Related characters

Descendants and related characters in the Latin alphabet

• M with diacritics: Ḿ ḿ Ṁ ṁ Ṃ ṃ M̃ m̃ ᵯ^[7]
• IPA-specific symbols related to M: ɱ ɰ
• Ɱ : Capital M with hook
• Uralic Phonetic Alphabet-specific symbols related to M:^[8]
  • U+1D0D ᴍ LATIN LETTER SMALL CAPITAL M
  • U+1D1F ᴟ LATIN SMALL LETTER SIDEWAYS TURNED M
  • U+1D39 ᴹ MODIFIER LETTER CAPITAL M
  • U+1D50 ᵐ MODIFIER LETTER SMALL M
  • U+1D5A ᵚ MODIFIER LETTER SMALL TURNED M
• Some symbols related to M were used by the Uralic Phonetic Alphabet prior to its formal standardization in 1902:^[9]
  • U+2098 ₘ LATIN SUBSCRIPT SMALL LETTER M
  • U+A7FA ꟺ LATIN LETTER SMALL CAPITAL TURNED M
• The Teuthonista phonetic transcription system uses U+AB3A ꬺ LATIN SMALL LETTER M WITH CROSSED-TAIL^[10]
• Other variations used for phonetic transcription:^[11] ᶆ ᶬ ᶭ
• Ɯ ɯ : Turned M
• ꟽ : Inverted M was used in ancient Roman texts to stand for mulier (woman)^[12]
• ꟿ : Archaic M was used in ancient Roman texts to abbreviate the personal name 'Manius' (A regular capital M was used for the more common personal name 'Marcus')^[12]
• ℳ : currency symbol for Mark

Ancestors and siblings in other alphabets

• 𐤌 : Semitic letter Mem, from which the following symbols originally derive:
  • Μ μ : Greek letter Mu, from which M derives
    • Ⲙ ⲙ : Coptic letter Me, which derives from Greek Mu
    • М м : Cyrillic letter Em, also derived from Mu
    • 𐌌 : Old Italic M, which derives from Greek Mu, and is the ancestor of modern Latin M
      • ᛗ : Runic letter Mannaz, which derives from old Italic M
    • 𐌼 : Gothic letter manna, which derives from Greek Mu

Ligatures and abbreviations

• ₥ : Mill (currency)
• ™ : Trademark symbol
• ℠ : Service mark symbol

Other representations

Computing

Character information

Preview	M		m		Ｍ		ｍ
Unicode name	LATIN CAPITAL LETTER M		LATIN SMALL LETTER M		FULLWIDTH LATIN CAPITAL LETTER M		FULLWIDTH LATIN SMALL LETTER M
Encodings	decimal	hex	dec	hex	dec	hex	dec	hex
Unicode	77	U+004D	109	U+006D	65325	U+FF2D	65357	U+FF4D
UTF-8	77	4D	109	6D	239 188 173	EF BC AD	239 189 141	EF BD 8D
Numeric character reference	M	M	m	m	Ｍ	Ｍ	ｍ	ｍ
EBCDIC family	212	D4	148	94
ASCII[a]	77	4D	109	6D

Other

NATO phonetic	Morse code
Mike	▄▄▄ ▄▄▄ ⓘ

Signal flag	Flag semaphore	American manual alphabet (ASL fingerspelling)	British manual alphabet (BSL fingerspelling)	Braille dots-134 Unified English Braille

Notes

1. Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings.

References

1. "M" Oxford English Dictionary, 2nd edition (1989); Merriam-Webster's Third New International Dictionary of the English Language, Unabridged (1993); "em," op. cit.
2. See F. Simons, "Proto-Sinaitic — Progenitor of the Alphabet" Rosetta 9 (2011): Figure Two: "Representative selection of proto-Sinaitic characters with comparison to Egyptian hieroglyphs", (p. 38) Figure Three: "Chart of all early proto-Canaanite letters with comparison to proto-Sinaitic signs" (p. 39), Figure Four: "Representative selection of later proto-Canaanite letters with comparison to early proto-Canaanite and proto-Sinaitic signs" (p. 40). See also: Goldwasser (2010), following Albright (1966), "Schematic Table of Proto-Sinaitic Characters" (fig. 1 Archived 2016-07-03 at the Wayback Machine).
3. Gordon, Arthur E. (1983). Illustrated Introduction to Latin Epigraphy. University of California Press. pp. 45. ISBN 9780520038981. Retrieved October 3, 2015. roman numerals.
4. "What does M stand for?". The Free Dictionary. Archived from the original on November 25, 2020. Retrieved February 9, 2021.
5. "M definition and meaning". Collins English Dictionary. Archived from the original on February 27, 2021. Retrieved February 9, 2021.
6. "MM (Millions)". corporatefinanceinstitute.com. corporate finance institute. Archived from the original on August 5, 2024. Retrieved August 5, 2024.
7. Constable, Peter (September 30, 2003). "L2/03-174R2: Proposal to Encode Phonetic Symbols with Middle Tilde in the UCS" (PDF). Archived (PDF) from the original on October 11, 2017. Retrieved March 24, 2018.
8. Everson, Michael; et al. (March 20, 2002). "L2/02-141: Uralic Phonetic Alphabet characters for the UCS" (PDF). Archived (PDF) from the original on February 19, 2018. Retrieved March 24, 2018.
9. Ruppel, Klaas; Aalto, Tero; Everson, Michael (January 27, 2009). "L2/09-028: Proposal to encode additional characters for the Uralic Phonetic Alphabet" (PDF). Archived (PDF) from the original on October 11, 2017. Retrieved March 24, 2018.
10. Everson, Michael; Dicklberger, Alois; Pentzlin, Karl; Wandl-Vogt, Eveline (June 2, 2011). "L2/11-202: Revised proposal to encode "Teuthonista" phonetic characters in the UCS" (PDF). Archived (PDF) from the original on October 11, 2017. Retrieved March 24, 2018.
11. Constable, Peter (April 19, 2004). "L2/04-132 Proposal to add additional phonetic characters to the UCS" (PDF). Archived (PDF) from the original on October 11, 2017. Retrieved March 24, 2018.
12. Perry, David J. (August 1, 2006). "L2/06-269: Proposal to Add Additional Ancient Roman Characters to UCS" (PDF). Archived (PDF) from the original on June 14, 2019. Retrieved March 24, 2018.

External links

• Media related to M at Wikimedia Commons
• The dictionary definition of M at Wiktionary
• The dictionary definition of m at Wiktionary