From theEtruscan letter𐌌(m,em), from theAncient Greek letterΜ(M,mu), derived from thePhoenician letter𐤌(m,mem), from theEgyptian hieroglyph𓈖.

• ꟿ(in ancient inscriptions)

M (lower casem)

1. The thirteenth letter of thebasic modern Latin alphabet.

• (Latin script):  Aa  Bb  Cc  Dd  Ee  Ff  Gg  Hh  Ii  Jj  Kk  Ll  Mm  Nn  Oo  Pp  Qq  Rr  Sſs  Tt  Uu  Vv  Ww  Xx  Yy  Zz
• (Variations of letter M):  Ḿḿ  Ṁṁ  Ṃṃ  ᵯ  ᶆ  Ɱɱ  ᴍ  Ｍｍ

An alteration of⋈, from∞, an alteration ofↀ, an alteration ofⓍ, from encirclingX (the roman numeral for ten) to indicate the hundredth ten.

• m,DD,dd,ↀ,Ⅰ̅,ⅰ̅,ⅭⅠↃ

M (upper case Roman numeral,lower casem)

1. (Roman numerals)Thousand (1000)
2. Thethousandth (1,000th).

M

1. Male,infrequently appended to age.
3. Abbreviation ofmega-.
5. (astronomy)Abbreviation ofMessier,used inMessier numbers.
6. (biochemistry)Abbreviation ofmethionine,as established byIUPAC.
7. (chemistry)Abbreviation ofmolar(one mole of substance per litre of solvent).
8. (mathematical analysis) A genericmanifold.
9. (group theory)monster group
10. (music)major
11. (linguistics) midtone
12. (astronomy)mass of a reference body as a unit of measure

    M_☉ —solar mass;M_🜨 —terrestrial mass;M_J orM_♃ —jovian mass;M_L orM_☾ —lunar mass

13. (usuallyclothing)medium(the manufactured size)

    Coordinate terms:XXS,XS,S,L,XL,XLT,XXL,XXXL

Because of the potential for confusion, the abbreviation for unit "molar" is usually written in italics (M) or insmall caps (ᴍ).M for reference mass is usually written in italics.

• Letter styles
•  
  Uppercase and lowercase versions ofM, in normal and italic type
•  
  Uppercase and lowercaseM inFraktur

Character=M

Other representations of M:

• (name of letter)IPA^(key):/ɛm/

Audio(UK):

(file)

• Rhymes:-ɛm

M (upper case,lower casem,pluralMsorM's)

1. The thirteenthletter of the Englishalphabet, calledem and written in theLatin script.

• (Latin-script letters)letter;A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s,T t,U u,V v,W w,X x,Y y,Z z

(Thisetymology is missing or incomplete. Please add to it, or discuss it at theEtymology scriptorium.)

M (upper case,lower casem)

1. Theordinal numberthirteenth, derived from thisletter of the Englishalphabet, calledem and written in theLatin script.

Abbreviation.

M (countable anduncountable,pluralMs)

1. Initialism ofmother.
2. Initialism ofmen(sign on toilet door).

   Coordinate term:W

   • 2001, Jonathan Franzen,The Corrections, New York, NY:Farrar, Straus and Giroux,→ISBN,page332:

     From the Kierkegaard Room he lopingly careened through a red-carpeted hallway that had previously vouchsafed him a comfort station but this morning seemed all business, noM or W in sight, just salons and boutiques and the Ingmar Bergman Cinema.

3. Abbreviation ofMonday.

   Synonyms:Mon,Mon.

4. Abbreviation ofnautical mile.
5. Initialism ofmillion.
6. (entomology)Initialism ofmedia.
7. (usuallyclothing)Initialism ofmedium(the manufactured size or an item of that size).

   Coordinate terms:XXS,XS,S,L,XL,XLT,XXL,XXXL

8. (US,film) Afilm with the content rating M.
9. (injoblistings)Abbreviation ofminority.

   EOEM/F/V/H ―equal opportunity employer (minority, female, veteran, handicap)

10. (slang)Initialism ofmorphine.
    • 1952,Woman's Home Companion, volume79, page141:

      [Doctors] always carry narcotic prescription blanks and someM with them.M is morphine.

    • 1956,Jess Stearn,Sisters of the Night: The Startling Story of Prostitution in New York Today, New York: Julian Messner, Inc., page59:

      “Anyway, when he came out of Patsy's room, I grabbed him by the arm and said, ‘Gee whiz, doc, haven't you got a couple of pills for me—even demerol?’ ” / Willie broke off to explain. “That's a synthetic. We call them demmies. If you can't buy H orM, why, demmies will do the trick.”

    • 1957,Jack Kerouac,On the Road, Viking Press,→OCLC:

      That night Marylou took everything in the books; she took tea, goofballs, benny, liquor, and even asked Old Bull for a shot ofM, which of course he didn’t give her; he did give her a martini.

    • 2009, Larry Harrison,Glimpses of a Floating World, page142:

      'You were going to get me someM,' she whispered in his ear.[…] His friend uses morphine, too.

11. (cricket, in batting figures) the number of minutes a player spent at thecrease
12. (cricket, in bowling figures) the number ofmaiden overs bowled
13. (India,Islam,Internetslang)Initialism ofMuslim;mostly used byHindutva netizens primarily towardsIslamist supporters and Muslim militants.

    Coordinate term:H(“Hindu”)

14. Initialism ofmasochist.
    • 1980 April 5, Brian O'Dell, “Sensuality/Mutuality”, inGay Community News, page 4:

      In all the sexual encounters I have participated in or know of the "M" sets the limits as to what to get into and how much pain will be applied. And of course if the scene gets too rough the "M" has the right to stop it.

M (pluralMessrsorMM)

1. Monsieur.

   Alternative form:M.

   • 1928 May,Paul Morand, “Paris Letter”, inThe Dial, volume LXXXIV, number 6, publishedJune 1928,page508:

     I also advise reading the Merlin ofM Jean Prévost, published by the N. R. F., a swift audacious picture of post-war love, treated with the grace of a Crébillon or of a Restif de la Bretonne. I could not recommend too highly the Petite Histoire des Juifs whichMM Jean and Jérôme Tharaud have just published with Plon.

The current standard form in French isM., withMM. as the plural.

M

1. (Stenoscript)Abbreviation ofmonth.

M

1. (Michigan, roadway)Michigan.

M (notcomparable)

1. Initialism ofmale.

   Coordinate terms:F,X

2. (usuallyclothing)Initialism ofmedium(of the manufactured size).

   Coordinate terms:XXS,XS,S,L,XL,XXL

3. Initialism ofmature.

   (Can we add anexample for this sense?)

M

1. The seventeenth letter in the Afar alphabet.

• (Latin-script letters)A a,B b,T t,S s,E e,C c,K k,X x,I i,D d,Q q,R r,F f,G g,O o,L l,M m,N n,U u,W w,H h,Y y

• (letter name):IPA^(key):/ɛm/

M (upper case,lower casem)

1. The thirteenthletter of the Afrikaansalphabet, written in theLatin script.

• (Latin-script letters)letter;Aa,Bb,Cc,Dd,Ee,Ff,Gg,Hh,Ii,Jj,Kk,Ll,Mm,Nn,Oo,Pp,Qq,Rr,Ss,Tt,Uu,Vv,Ww,Xx,Yy,Zz

M (pluralM'e,diminutiveM'etjie)

1. M

M

1. The thirty-secondletter of the Angamialphabet, written in theLatin script.

• (Latin-script letters)Ü ü,Üi üi,A a,Ai ai,I i,Ie ie,U u,Uo uo,E e,Ei ei,O o,Ou ou,K k,Kh kh,G g,Ng ng,C c,Ch ch,J j,Jh jh,Ny ny,T t,Th th,D d,N n,Ts ts,Tsh tsh,Dz dz,P p,Ph ph,B b,M m,Pf pf,Bv bv,Y y,Yh yh,R r,Rh rh,L l,Lh lh,F f,V v,W w,Wh wh,S s,Sh sh,Z z,Zh zh,H h

Mupper case (lower casem)

1. The nineteenthletter of the Azerbaijanialphabet, written in theLatin script.

• (Latin-script letters)hərf;A a,B b,C c,Ç ç,D d,E e,Ə ə,F f,G g,Ğ ğ,H h,X x,I ı,İ i,J j,K k,Q q,L l,M m,N n,O o,Ö ö,P p,R r,S s,Ş ş,T t,U u,Ü ü,V v,Y y,Z z

• IPA^(key):/eme/,[e̞.me̞]

M (upper case,lower casem)

1. The thirteenthletter of the Basquealphabet, calledeme and written in theLatin script.

• (Latin-script letters)A a,B b,C c (Ç ç),D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,Ñ ñ,O o,P p,Q q,R r,S s,T t,U u (Ü ü),V v,W w,X x,Y y,Z z

• IPA^(key):(Central,Balearic)[ˈe.mə]
• IPA^(key):(Valencia)[ˈe.me],[ˈem]

M (upper case,lower casem)

1. The thirteenthletter of the Catalanalphabet, calledema,eme, orem and written in theLatin script.

• (Latin-script letters)lletres;A a (À à),B b,C c (Ç ç),D d,E e (É é,È è),F f,G g,H h,I i (Í í,Ï ï),J j,K k,L l (L·L l·l),M m,N n,O o (Ó ó,Ò ò),P p,Q q,R r,S s,T t,U u (Ú ú,Ü ü),V v,W w,X x,Y y,Z z

• /m/ is from West Germanic*m.

• IPA^(key):/m/

M

1. A letter in the German-based alphabet of Central Franconian.
2. A letter in the Dutch-based alphabet of Central Franconian.

• IPA^(key):/m/

M (lower casem)

1. A letter of theMazahua alphabet.

• (Latin-script letters)A a,Ⱥ ⱥ,A̱ a̱,B b,C c,Cꞌ cꞌ,Cj cj,Cu cu,Cꞌu cꞌu,Cju cju,Ch ch,Chꞌ chꞌ,Chj chj,D d,Dy dy,E e,Ɇ ɇ,E̱ e̱,G g,Gu gu,Hu hu,ꞌHu ꞌhu,I i,I̱ i̱,J j,Jꞌ jꞌ,Jm jm,Jn jn,Jñ jñ,Ju ju,Jy jy,L l,M m,Mꞌ mꞌ,N n,Nꞌ nꞌ,Ñ ñ,Ñꞌ ñꞌ,O o,Ø ø,O̱ o̱,P p,Pj pj,R r,S s,T t,Tꞌ tꞌ,Tj tj,Ts ts,Tsꞌ tsꞌ,Tsj tsj,U u,Ꞹ ꞹ,U̱ u̱,X x,Z z,Zh zh,ꞌ

FromEnglishmenstruation ormenstrual cycle.

M

1. (Hong Kong Cantonese,colloquial)menstruation

   嚟M[Cantonese]  ― lei⁴em¹[Jyutping]  ―  to haveperiods

2. (Hong Kong Cantonese,colloquial)menstrual cycle
3. (Hong Kong Cantonese,colloquial)menses;menstrualblood

M

1. (Hong Kong Cantonese,colloquial) tomenstruate; to have aperiod

(Thisetymology is missing or incomplete. Please add to it, or discuss it at theEtymology scriptorium.)

M

1. (Hong Kong Cantonese,universityslang) tonab; totake withoutasking

FromEnglishM orEnglishmetre.

M

1. (Hong Kong Cantonese)metre

FromEnglishM,meg(“megabyte”).

• MB

M

1. (computing,informal)megabyte

• G(“gigabyte”)

M

1. The thirteenth letter of the Latin alphabet.

M

1. The third letter used inPinyin.

• 《汉语拼音方案》 defines a standard pronunciation for each letter. However, these pronunciations are rarely used in education; another pronunciation is commonly used instead.
• The pronunciation above are only used while referring to letters in Pinyin. They are not used in other context (such as English).
• The official pronunciation defined in 《汉语拼音方案》, ㄝㄇ (ê̄m), is not a valid syllable in Pinyin.

• (letter name):IPA^(key):/ɛm/

• Audio:

  (file)

M (capital,lowercasem)

1. the thirteenth letter of the Dutch alphabet

• Previous letter:L
• Next letter:N

• ᛘ,M(Dalecarlian runes)

M (upper caseM,lower casem)

1. The sixteenthletter of the Elfdalianalphabet, written in theLatin script.

• (phoneme):IPA^(key):/m/

• Audio:

  (file)

M (upper case,lower casem)

1. The sixteenthletter of the Esperantoalphabet, calledmo and written in theLatin script.

• (Latin-script letters)litero;A a,B b,C c,Ĉ ĉ,D d,E e,F f,G g,Ĝ ĝ,H h,Ĥ ĥ,I i,J j,Ĵ ĵ,K k,L l,M m,N n,O o,P p,R r,S s,Ŝ ŝ,T t,U u,Ŭ ŭ,V v,Z z

M (upper case,lower casem)

1. The thirteenthletter of the Estonianalphabet, calledemm and written in theLatin script.

• (Latin-script letters)täht;A a,B b (C c),D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p (Q q),R r,S s,Š š,Z z,Ž ž,T t,U u,V v (W w),Õ õ,Ä ä,Ö ö,Ü ü (X x,Y y)

The Finnish orthography using the Latin script was based on those of Swedish, German and Latin, and was first used in the mid-16th century. No earlier script is known. Seethe Wikipedia article on Finnish for more information, andM for information on the development of the glyph itself.

M (upper case,lower casem)

1. The thirteenthletter of the Finnishalphabet, calledäm orem and written in theLatin script.

• (Latin-script letters)kirjain;A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s (Š š),T t,U u,V v (W w),X x,Y y,Z z (Ž ž),Å å,Ä ä,Ö ö

M

1. Abbreviation ofmagna cum laude approbatur.
2. Abbreviation ofmies(“man, male”).

M

1. Abbreviation ofmaidoton(“milk-free, dairy-free”)(e.g. in restaurant menus).

The abbreviationsG,L,VL andM are the most common of their kind seen in restaurant menus. Other abbreviations are also seen, but not as standardized. Most menus contain a list of the abbreviations they use, including the four common ones.

• IPA^(key):/ɛm/

• Audio(Paris):

  (file)

M (lowercasem)

1. the thirteenth letter of theFrench alphabet, preceded byL and followed byN

• IPA^(key):/ʔɛm/

• Audio:

  (file)

M (upper case,lower casem)

1. The thirteenth letter of the German alphabet.

M f (genitiveM,no plural)

1. (historical,East Germany)Abbreviation ofMark der DDR.

   Coordinate term:DM

• (phoneme):IPA^(key):[ˈm]
• (letter name):IPA^(key):[ˈɛmː]

M (upper case,lower casem)

1. The twenty-firstletter of the Hungarianalphabet, calledemm and written in theLatin script.

• (Latin-script letters)betű;A a,Á á,B b,C c,Cs cs,D d,Dz dz,Dzs dzs,E e,É é,F f,G g,Gy gy,H h,I i,Í í,J j,K k,L l,Ly ly,M m,N n,Ny ny,O o,Ó ó,Ö ö,Ő ő,P p,R r,S s,Sz sz,T t,Ty ty,U u,Ú ú,Ü ü,Ű ű,V v,Z z,Zs zs.Only in the extended alphabet:Q qW wX xY y.Commonly used: ch.Also defined: à ë.In surnames (selection):äaaczdseéeöewoeoóthts ÿ.

M (lower casem)

1. The sixteenthletter of the Icelandicalphabet, written in theLatin script.

• (Latin-script letters)bókstafur;A a,Á á,B b,D d,Рð,E e,É é,F f,G g,H h,I i,Í í,J j,K k,L l,M m,N n,O o,Ó ó,P p,R r,S s,T t,U u,Ú ú,V v,X x,Y y,Ý ý,Þ þ,Æ æ,Ö ö

• IPA^(key):/m/

M (lower casem)

1. The thirteenthletter of the Idoalphabet, written in theLatin script.

• (Latin-script letters)litero;A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s,T t,U u,V v,W w,X x,Y y,Z z

• (letter name):IPA^(key):/ɛm/
• (phoneme):IPA^(key):/m/

M (upper case,lower casem)

1. The thirteenthletter of the Indonesianalphabet, written in theLatin script.

• (Latin-script letters)huruf;A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s,T t,U u,V v,W w,X x,Y y,Z z

M

1. Abbreviation ofMasehi(“CE;Christian Era”).

M (upper case,lower casem)

1. The eleventhletter of the Irishalphabet, written in theLatin script.

• (Latin-script letters)litir;A a (Á á),B b (Bh bh,bhF bhf,bP bp),C c (Ch ch),D d (Dh dh,dT dt),E e (É é),F f (Fh fh),G g (gC gc,Gh gh),H h,I i (Í í),L l,M m (mB mb,Mh mh),N n (nD nd,nG ng),O o (Ó ó),P p (Ph ph),R r,S s (Sh sh),T t (Th th,tS ts),U u (Ú ú),V v
• (diacritics)◌́◌̇
• (dotted letters used chiefly inGaelic type)Ḃḃ,Ċċ,Ḋḋ,Ḟḟ,Ġġ,Ṁṁ,Ṗṗ,Ṡẛṡ,Ṫṫ

• (letter name)IPA^(key):/ˈɛm.me/
  • Rhymes:-ɛmme
• (phonemic realization)IPA^(key):/m/

M f orm (invariable,upper case,lower casem)

1. The eleventhletter of the Italianalphabet, calledemme and written in theLatin script.

M

1. down with

   Antonym:W(“up with”)

• (Latin-script letters)lettera;A a (À à),B b,C c,D d,E e (É é,È è),F f,G g,H h,I i (Í í,Ì ì,Πî,J j,K k),L l,M m,N n,O o (Ó ó,Ò ò),P p,Q q,R r,S s,T t,U u (Ú ú,Ù ù),V v (W w,X x,Y y),Z z
•  Italian alphabet on Wikipedia.Wikipedia

From the initial letter ofEnglishmedium.

M(エム)• (emu) 

1. mediumsize

• 中(ちゅう)(chū)

• L(L)
• S(S)

From the initial letter ofEnglishmasochism; compareEnglishS&M.

M(エム)• (emu) 

1. (sexuality,euphemistic)masochism,masochist
2. (colloquial) submissive personality

• S(エス)(esu)

• ドM(エム)(do-emu)

Borrowed fromTagalogM. Letter pronunciation is influenced byEnglishM.

• (letter name)IPA^(key):/ʔem/[ʔem]
  • Rhymes:-em
• (phoneme)IPA^(key):/m/[m]

M (upper case,lower casem)

1. The thirteenthletter of the Kankanaeyalphabet, calledem and written in theLatin script.

• (Latin-script letters)letra;A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,Ñ ñ,Ng ng,O o,P p,Q q,R r,S s,T t,U u,V v,W w,X x,Y y,Z z

• Komisyon ng Wikang Filipino (2016)Ortograpiya di Kankanaëy [Kankanaey Orthography]‎^[1] (in Kankanaey and Tagalog),→ISBN, pages10-11

The Kashubian orthography is based on the Latin alphabet. No earlier script is known. See theKashubian alphabet article on Wikipedia for more, andM for development of the glyph itself.

M (upper case,lower casem)

1. The eighteenthletter of the Kashubianalphabet, written in theLatin script.

• (Latin-script letters)A a,Ą ą,àã,B b,C c,D d,E e,É é,Ë ë,F f,G g,H h,I i,J j,K k,L l,Ł ł,M m,N n,O o,Ò ò,Ó ó,Ô ô,P p,R r,S s,T t,U u,Ù ù,W w,Y y,Z z,Ż ż

M (upper case,lower casem)

1. A letter in theLatin alphabet, representing the sound /m/

• (Latin-script letters)A a,B b,C c,D d,E e,F f,G g,H h,I i,L l,M m,N n,O o,P p,Q q,R r,S s,T t,V v,X x,Y y,Z z

M

1. the number 1,000 (mīlle)

Proposed in 1908 as part of the new Latvian spelling by the scientific commission headed byK. Mīlenbahs, which was accepted and began to be taught in schools in 1909. Prior to that, Latvian had been written in GermanFraktur, and sporadically inCyrillic.

• IPA^(key):[m]

• Audio:

  (file)

M (upper case,lower casem)

1. The twentiethletter of the Latvianalphabet, calledem and written in theLatin script.

• Letters of the Latvian alphabet:

  burti:Aa,Āā,Bb,Cc,Čč,Dd,Ee,Ēē,Ff,Gg,Ģģ,Hh,Ii,Īī,Jj,Kk,Ķķ,Ll,Ļļ,Mm,Nn,Ņņ,Oo,Pp,Rr,Ss,Šš,Tt,Uu,Ūū,Vv,Zz,Žž

• (Name of letter)IPA^(key):[ɛm]
• (Phoneme)IPA^(key):[m]

M

1. The thirteenthletter of the Malayalphabet, written in theLatin script.

• (Latin-script letters)A a,B b,C c,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s,T t,U u,V v,W w,X x,Y y,Z z

M (lower casem)

1. Aletter of the Navajoalphabet, written in theLatin script.

• (Latin-script letters)A a (Á á,Ą ą,Ą́ ą́),B b,Ch ch,Chʼ chʼ,D d,Dl dl,Dz dz,E e (É é,Ę ę,Ę́ ę́),G g,Gh gh,H h,Hw hw,X x,I i (Í í,Į į,Į́ į́),J j,K k,Kʼ kʼ,Kw kw,ʼ,L l,Ł ł,M m,N n (Ń ń),O o (Ó ó,Ǫ ǫ,Ǫ́ ǫ́),S s,Sh sh,T t,Tʼ tʼ,Tł tł,Tłʼ tłʼ,Ts ts,Tsʼ tsʼ,W w,Y y,Z z,Zh zh

• (phoneme):IPA^(key):/m/,IPA^(key):/ŋ/

M (upper case,lower casem)

1. The sixteenthletter of the Nupealphabet, written in theLatin script.

• (Latin-script letters)banki;A a (Á á,À à),B b,C c,D d,Dz dz,E e (É é,È è),F f,G g,Gb gb,H h,I i (Í í,Ì ì),J j,K k,Kp kp,L l,M m (Ḿ ḿ,M̀ m̀,M̄ m̄),N n (Ń ń,Ǹ ǹ,N̄ n̄),O o (Ó ó,Ò ò),P p,R r,S s,Sh sh,T t,Ts ts,U u (Ú ú,Ù ù),V v,W w,Y y,Z z,Zh zh

• (phoneme):IPA^(key):/m/

M

1. A letter of the Old English alphabet representing the phoneme /m/

M

1. the numeral1000 (þūsend)
   • late 9th century,translation ofOrosius’History Against the Pagans

     Þǣr wæs Persa XM ofslæġen ġehorsedra, ⁊ eahtatiġM fēþena,⁊ eahtatiġ M ġefangenra.

     There, 10,000 Persian cavalry were slain, and 80,000 infanty, and 80,000 were captured.

The Polish orthography is based on the Latin alphabet. No earlier script is known. See thehistory of Polish orthography article on Wikipedia for more, andM for development of the glyph itself.