M, m

[em]

See more synonyms for M, m on Thesaurus.com

noun, plural M's or Ms, m's or ms.

the thirteenth letter of the English alphabet, a consonant.
any spoken sound represented by the letter M or m, as in my, summer, or him.
something having the shape of an M.

a written or printed representation of the letter M or m.
a device, as a printer's type, for reproducing the letter M or m.
Printing. em.

m

Physics. mass.
Finance. (of bonds) matured.
medieval.
medium.
meter; meters.
middle.
Music. minor.

m

Symbol, Electricity. magnetic pole strength.

M

mach.
Music. major.
male.
married.
Medieval.
medium.
mega-.
Middle.
modal auxiliary.
modifier.
Economics. monetary aggregate: issued periodically by the Federal Reserve Board as various measures of money supply (M-1, M-1A, M-2, etc.).Compare L
British. motorway (used with a road number to designate a major highway): the M1.

M

Symbol.

the thirteenth in order or in a series, or, when I is omitted, the twelfth.
(sometimes lowercase) the Roman numeral for 1000.Compare Roman numerals.
Electricity. magnetization.
Biochemistry. methionine.

Mac-

a prefix found in many family names of Irish or Scottish Gaelic origin, as MacBride and Macdonald.

Also Mc- Mc-, M'-.

Origin of Mac-

< Irish, Scots Gaelic mac son, Old Irish macc; akin to Welsh, Cornish mab

'm

[m]

contraction of am: I'm not thirsty.

m-

meta-.
(referring especially to the use of wireless electronic devices) mobile: m-commerce; m-business.

M-

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

M'-

variant of Mac-.

m.¹

noon.

Origin of m.¹

From the Latin word merīdiēs

m.²

(in prescriptions) mix.

Origin of m.²

From the Latin word misce

m.³

male.
(in Germany) mark; marks.
married.
masculine.
Physics. mass.
medium.
meter.
middle.
mile.
minute.
modification of.
modulus.
molar.
month.
moon.
morning.
mouth.

M.¹

or m.

noon.

Origin of M.¹

From the Latin word merīdiēs

M.²

Mc-²

variant of Mac-.

Also Mc-.

mu

[myoo, moo]

noun

the 12th letter of the Greek alphabet (M, μ).
the consonant sound represented by this letter.
micron(def 1).

Origin of mu

First recorded in 1895–1900, mu is from the Greek word mŷ

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for m

Contemporary Examples

“I´m now writing to you from goat heaven,” he lamented on the blog he maintains.
Sweden’s Burning Christmas Goat
Nina Strochlic
December 25, 2014
A third cabinet member used public funds to pay in an S & M bar.
Japan’s Nasty Nazi-ish Elections
Jake Adelstein
December 12, 2014
“[M]any a headband was soon stained red,” noted a TIME cover story from 1964.
‘Argo’ in the Congo: The Ghosts of the Stanleyville Hostage Crisis
Nina Strochlic
November 23, 2014
He tells us that “[m]id-December in New York City is magical.”
Andrew Cuomo Ignores Rural New York
David Fontana
November 8, 2014
Perhaps that S M bar trip was actually a useful political lesson after all.
‘Whip it!’ Japanese Prime Minister Abe’s Cabinet Of Horrors
Jake Adelstein
October 24, 2014

Historical Examples

The Syrians added to it an m, thus giving it a participial form.
The Babylonian Legends of the Creation
British Museum
There was the tram line, if m'sieur did not care to take a fiacre.
The Black Bag
Louis Joseph Vance
We-e-ell, yuh see, m' son, it's my business to mind other people's business!
Good Indian
B. M. Bower
I can't keep my mind on m' fishing—just wondering what the deuce he's after.
Good Indian
B. M. Bower
"You're across the dead line, m' son," said Stanley, with lazy significance.
Good Indian
B. M. Bower

British Dictionary definitions for m

m

M

noun plural m's, M's or Ms

the 13th letter and tenth consonant of the modern English alphabet
a speech sound represented by this letter, usually a bilabial nasal, as in mat

m

symbol for

metre(s)
mile(s)
milli-
minute(s)

M

symbol for

mach
medium (size)
mega-
currency mark(s)
million
astronomy Messier catalogue; a catalogue published in 1784, in which 103 nebulae and clusters are listed using a numerical systemM13 is the globular cluster in Hercules
Middle
physics modulus
(in Britain) motorwaythe M1 runs from London to Leeds
(in Australia)
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
logic the middle term of a syllogism
physics mutual inductance
chem molar
(Roman numeral) 1000See Roman numerals

abbreviation for

Malta (international car registration)

m-

prefix

short for meta- (def. 4)

m-

prefix

indicating the use of mobile-communications technologym-banking

m.

abbreviation for

cricket maiden (over)
male
mare
married
masculine

M.

abbreviation for

Majesty
(in titles) Member
million
Also: M plural MM or MM French Monsieur
mountain

Word Origin

sense 4) French equivalent of Mr

M'-

prefix

a variant of Mac-

'm

contraction of

(verb) am
(noun) madamyes'm

Mc-

prefix

a variant of Mac-

usage

For names beginning with this prefix, see under Mac-

mu¹

noun

the 12th letter in the Greek alphabet (Μ, μ), a consonant, transliterated as m

mu²

the internet domain name for

Mauritius

MU

abbreviation for

Musicians' Union

Mac-

Mc- or M'-

prefix

(in surnames of Scottish or Irish Gaelic origin) son ofMacDonald; MacNeice

Word Origin

from Goidelic mac son of; compare Welsh mab, Cornish mab

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for m

M

13th letter, from Greek mu, from Semitic mem. The Roman symbol for 1,000; sometimes used in this sense in English 15c.-16c.; but in late 20c. newspaper headlines it stands for million. As a thickness of type, from 1680s.

Mac-

common element in Scottish and Irish names, from Old Celtic *makko-s "son." Cognate root *makwos "son" produced Old Welsh map, Welsh mab, ap "son;" also probably cognate with Old English mago "son, attendant, servant," Old Norse mögr "son," Gothic magus "boy, servant," Old English mægð "maid" (see maiden).

m in Medicine

m

abbr.

mass
meter

M

abbr.

molar1
molarity
morgan
myopia

m-

abbr.

meta-

mu

(myōō, mōō)

The 12th letter of the Greek alphabet.

adj.

Of, relating to, or being a polypeptide chain that is one of five types of heavy chains present in immunoglobins.

Mu

abbr.

Mache unit

m in Science

m

Abbreviation of mass, meter

M, m

m

m

M

M

Mac-

Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}Mac-

'm

m-

M-

M'-

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Origin of m.1

m.2

Origin of m.2

m.3

M.1

or m.

Origin of M.1

M.2

Mc-2

mu

Origin of mu

Examples from the Web for m

Contemporary Examples

“I´m now writing to you from goat heaven,” he lamented on the blog he maintains.

A third cabinet member used public funds to pay in an S & M bar.

“[M]any a headband was soon stained red,” noted a TIME cover story from 1964.

He tells us that “[m]id-December in New York City is magical.”

Perhaps that S M bar trip was actually a useful political lesson after all.

Historical Examples

The Syrians added to it an m, thus giving it a participial form.

There was the tram line, if m'sieur did not care to take a fiacre.

We-e-ell, yuh see, m' son, it's my business to mind other people's business!

I can't keep my mind on m' fishing—just wondering what the deuce he's after.

"You're across the dead line, m' son," said Stanley, with lazy significance.

m

M

m

M

m-

m-

m.

M.

Word Origin

M'-

'm

Mc-

usage

mu1

mu2

MU

Mac-

Mc- or M'-

Word Origin

Word Origin and History for m

M

Mac-

m

M

m-

mu

Mu

m

Origin of Mac-

m.¹

Origin of m.¹

m.²

Origin of m.²

m.³

M.¹

Origin of M.¹

M.²

Mc-²

mu¹

mu²