M

¹

Or m

[em]

noun

plural

M's, Ms, m's, ms. 

1. the thirteenth letter of the English alphabet, a consonant.

2. any spoken sound represented by the letter M or m, as in my, summer, or him.

3. something having the shape of an M.

4. a written or printed representation of the letter M or m.

5. a device, as a printer's type, for reproducing the letter M or m.

6. Printing.,  em.

M.

²

abbreviation

plural

MM 

1. Majesty.

2. Manitoba.

3. markka; markkaa.

4. Marquis.

5. Music.,  measure.

6. medicine.

7. medium.

8. meridian.

9. Monday.

10. Monsieur.

11. mountain.

M

³

Symbol.

1. the thirteenth in order or in a series.

2. (sometimes lowercase),  the Roman numeral for 1000.

3. Electricity.,  magnetization.

4. Biochemistry.,  methionine.

M.

⁴

Or m.

abbreviation

1. noon.

m

⁵

Symbol, Electricity.

1. magnetic pole strength.

M

⁶

abbreviation

1. mach.

2. Music.,  major.

3. male.

4. married.

5. Medieval.

6. medium.

7. mega-.

8. Middle.

9. modal auxiliary.

10. modifier.

11. Economics.,  monetary aggregate: issued periodically by the Federal Reserve Board as various measures of money supply (M-1, M-1A, M-2, etc.).

12. British.,  motorway (used with a road number to designate a major highway).

    the M1.

m.

⁷

abbreviation

1. male.

2. (in Germany) mark; marks.

3. married.

4. masculine.

5. Physics.,  mass.

6. medium.

7. meter.

8. middle.

9. mile.

10. minute.

11. modification of.

12. modulus.

13. molar.

14. month.

15. moon.

16. morning.

17. mouth.

M'-

⁸

1. variant of Mac-.

m

⁹

abbreviation

1. Physics.,  mass.

2. Finance.,  (of bonds) matured.

3. medieval.

4. medium.

5. meter; meters.

6. middle.

7. Music.,  minor.

m.

¹⁰

abbreviation

1. (in prescriptions) mix.

m.

¹¹

abbreviation

1. noon.

M-

¹²

1. U.S. Military.,  (used to designate the production model of military equipment, as the M-1 rifle.)

'm

¹³

[m]

1. contraction of am.

   I'm not thirsty.

m-

¹⁴

1. meta-.

2. (referring especially to the use of wireless electronic devices) mobile.

   m-commerce; m-business.

M

¹

symbol

1. mach

2. medium (size)

3. mega-

4. currency mark(s)

5. million

6. astronomy Messier catalogue; a catalogue published in 1784, in which 103 nebulae and clusters are listed using a numerical system

   M13 is the globular cluster in Hercules

7. Middle

8. physics modulus

9. (in Britain) motorway

   the M1 runs from London to Leeds

10. 1. mature audience (used to describe a category of film certified as suitable for viewing by anyone over the age of 15)

    2. ( as modifier )

       an M film

11. logic the middle term of a syllogism

12. physics mutual inductance

13. chem molar

14. 1000 See Roman numerals

abbreviation

1. Malta (international car registration)

M'-

²

prefix

1. a variant of Mac-

m-

³

prefix

1. short for meta-

m

⁴

symbol

1. metre(s)

2. mile(s)

3. milli-

4. minute(s)

m-

⁵

prefix

1. indicating the use of mobile-communications technology

   m-banking

m.

⁶

abbreviation

1. cricket maiden (over)

2. male

3. mare

4. married

5. masculine

M.

⁷

abbreviation

1. Majesty

2. (in titles) Member

3. million

4. Also: M. Monsieur

5. mountain

m

⁸

/ ɛm /

noun

1. the 13th letter and tenth consonant of the modern English alphabet

2. a speech sound represented by this letter, usually a bilabial nasal, as in mat

'm

⁹

contraction

1. (verb) am

2. (noun) madam

   yes'm

m

1. Abbreviation of mass, meter

Word History and Origins

Origin of M¹

From the Latin word merīdiēs

Origin of M²

From the Latin word misce

Origin of M³

From the Latin word merīdiēs

Word History and Origins

Origin of M¹

sense 4) French equivalent of Mr

Example Sentences

A follow-up spectrum from the W. M. Keck Observatory in Hawai'i revealed the AGN's extreme luminosity.

Read more on Science Daily

"It's true that it's not the kind of music I'm used to listening to, but I loved it. I thought it was magical. I mean, I was listening to it as if I were in another world," she told AFPTV.

Read more on Barron's

“When I’m playing, it zones out,” Anna Leigh Waters says of that unmistakable, plastic pop, pop, pop distinct to the wildly popular paddle sport—and a bane to fussy condo boards everywhere.

Read more on The Wall Street Journal

“If I’m not playing, I hear it. I’m like, ‘That’s OK, that’s cool, that’s fine,’” Waters says.

Read more on The Wall Street Journal

“Who knows in five years if I’m like, ‘Alright, I’ve had enough pickleball,” she says.

Read more on The Wall Street Journal