There are 6 main definitions of m in English:

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m 1

Syllabification: m

abbreviation

1.1(In Germany) mark; marks.
1.2Married: m twice; two d
1.4 (m-) [in combination] Chemistry Meta-: m-xylene
1.5Meter(s).
1.7Mile(s).
1.8 [in combination] (In units of measurement) milli-: 100 mA
1.9Million(s): $5 m
1.10Minute(s).
1.13Modulus.
1.14Molar.
1.15Month.
1.16Moon.
1.18Mouth.
1.19Noon.
[From Latin meridies]

symbol

Physics Back to top  
Mass: E = mc2

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M 2 Syllabification: M
(also m)

noun (plural Ms or M's)

1The thirteenth letter of the alphabet. See also em.
Example sentences
  • I'm 30 and have had the exact same problem for many years -- and only just recently realized dilemma has two M's and no N.
  • Remember, his name has two M's in it.
1.1Denoting the next after L in a set of items, categories, etc.
2 (M) A shape like that of a capital M.
Example sentences
  • But on that way we got to see a lot of little shops and finally the big golden M and Julius got his burger (of which he only ate half).
  • Examples of trademarked items are the names "Coke," "Coca-cola," "McDonald's," the McDonald's golden M logo, stuff like that.
3The Roman numeral for 1,000.
[From Latin mille]
Example sentences
  • The Roman numerals C and M sometimes did not mean 100 or 1000 (see hundred).
  • What number equals the Roman numeral M?

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M 3 Syllabification: M

abbreviation

1.1Male.
1.4Marquis.
1.5 Music Measure.
1.7Medium (as a clothes size).
1.8 [in combination] (In units of measurement) mega-: 8 Mbytes of memory
1.10 Astronomy Messier (catalog of nebulae): the galaxy M33
1.11 Chemistry (With reference to solutions) molar: 0.15 M NaCl solution
1.12Monday.
1.13Monsieur: M Chirac
1.14Money, when used with a following numeral in measures of money supply: broad money, M3, grew by an annualized 9.7%
1.16Noon.
[From Latin meridies]

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There are 6 main definitions of m in English:

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M 4 Syllabification: M

symbol

Physics

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M-1 5 Syllabification: M-1

noun

A .30-caliber semiautomatic clip-fed rifle capable of firing eight rounds before reloading, the standard rifle used by US troops in World War II and the Korean War.
Example sentences
  • What is the value of an M-1 Garand rifle?
  • Should I use an M-1 Carbine to take out rats or other vermin?
  • An M-1 with the 105mm carries 55 main gun rounds.

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There are 6 main definitions of m in English:

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M-16 6 Syllabification: M-16

noun

A lightweight, fully automatic assault rifle that shoots small-caliber bullets at an extremely high velocity, used by US troops after 1966.
Example sentences
  • Kidding, it's not really a DeWalt edition rifle, it's just an M-16 some guy modded to look like one.
  • "I could troubleshoot an M-16 much faster than I could an M-14," says Lieut. Colonel Henry Miller, chief of Army heavy maintenance in Saigon.
  • Ashdod police were more than a bit surprised on Sunday when they spotted a 5-year-old walking a local street brandishing an M-16 rifle.

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