m
abbreviation
mass.
m
1 American
m
2
American
Symbol, Electricity.
'm
3
American
[m]
/ m /
M
4
American
[em]
/ ɛm /
Or
m
noun
-
M's,
plural
-
Ms,
plural
-
m's,
plural
-
ms
plural
-
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
5
American
abbreviation
-
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.).
-
British. motorway (used with a road number to designate a major highway).
the M1.
M
6
American
Symbol.
-
the thirteenth in order or in a series.
-
(sometimes lowercase) the Roman numeral for 1000.
-
Electricity. magnetization.
-
Biochemistry. methionine.
M'-
7
American
m-
8
American
-
(referring especially to the use of wireless electronic devices) mobile.
m-commerce; m-business.
M-
9
American
m.
10
American
abbreviation
m.
11
American
abbreviation
m.
12
American
abbreviation
-
male.
-
(in Germany) mark; marks.
-
married.
-
masculine.
-
Physics. mass.
-
medium.
-
meter.
-
middle.
-
mile.
-
minute.
-
modification of.
-
modulus.
-
molar.
-
month.
-
moon.
-
morning.
-
mouth.
M.
13
American
Or
m.
abbreviation
M.
14
American
abbreviation
-
MM
plural
-
Majesty.
-
Manitoba.
-
markka; markkaa.
-
Marquis.
-
Music. measure.
-
medicine.
-
medium.
-
meridian.
-
Monday.
-
Monsieur.
-
mountain.
m
1
British
/ ɛm /
noun
-
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
2
British
symbol
-
metre(s)
-
mile(s)
-
milli-
-
minute(s)
'm
3
British
contraction
-
(verb) am
-
(noun) madam
yes'm
m-
4
British
prefix
M'-
5
British
prefix
M
6
British
symbol
-
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 system
M13 is the globular cluster in Hercules
-
Middle
-
physics modulus
-
(in Britain) motorway
the M1 runs from London to Leeds
-
-
mature audience (used to describe a category of film certified as suitable for viewing by anyone over the age of 15)
-
( as modifier )
an M film
-
-
logic the middle term of a syllogism
-
physics mutual inductance
-
chem molar
-
1000 See Roman numerals
abbreviation
m-
7
British
prefix
m.
8
British
abbreviation
-
cricket maiden (over)
-
male
-
mare
-
married
-
masculine
M.
9
British
abbreviation
-
Majesty
-
(in titles) Member
-
million
-
Also: M. Monsieur
-
mountain
m
Scientific
Other Word Forms
Noun Inflected Forms
Etymology
Origin of m.10
From the Latin word merīdiēs
Origin of m.11
From the Latin word misce
Origin of M.13
From the Latin word merīdiēs
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The wreckage was scattered across 37,000 sq m, the equivalent of five football pitches, as the plane collided with accommodation for medical students, and broke apart.
From BBC ● Jun. 11, 2026
These animals were 'crocodile-like' relatives of today's salamanders and frogs and could reach lengths of up to 2 m.
From Science Daily ● Feb. 25, 2026
“I m not sure why he was sanctimonious and agressive when detailing the harvey weinstein allegations,” Epstein wrote. “now watching the overlay , its amazing.”
From Salon ● Feb. 6, 2026
Some species were small, squid-eating hunters measuring less than 1 m long, while others were enormous apex predators exceeding 5 m in length.
From Science Daily ● Dec. 30, 2025
“So, Diego, where m Colorado are you from?”
From "We Are the Ants" by Shaun David Hutchinson
This is what people say when I first tell them I ’m on the spectrum.
From Scientific American ● Apr. 7, 2022
“I miss him terribly, but not in the state that he was. He’s at peace, and I ‘m OK with that.
From Seattle Times ● Jan. 7, 2022
I ’m not one to switch bags often, so I have just one that serves as many functions as a bag can have.
From The Verge ● Sep. 8, 2017
I ’m getting real sick of these phone calls.
From Los Angeles Times ● Apr. 21, 2016
"I’ll need you to come straight home after school this week. This is a big one, and I ’m going to need your help, all right?"
From "The Rock and the River" by Kekla Magoon
M wants his daughter to go to university, and saved every cent so they could move to Iran so she could study there.
From Barron's ● Aug. 11, 2026
The "M" refers to the Mighei meteorite, which fell in Ukraine in 1889.
From Science Daily ● Aug. 8, 2026
Joel Mawhinney, known as Joel M, said the "risky" trick was "the scariest experience" of his life.
From BBC ● Jul. 21, 2026
When asked about the lobbying effort, Chavira referred questions to M Strategic Communications, a lobbying firm retained by Lineage two days after the fire to provide crisis communications and other services.
From Los Angeles Times ● Jul. 10, 2026
And Coach M did not tolerate fighting among the team.
From "Winger" by Andrew Smith
Similarly, condensation of different samples of crude cresol containing varying quantities of o-, m-, and p-cresol did not yield end-products sufficiently different to justify describing them in detail.
From Synthetic Tannins by Georg Grasser
Th-That was F-Father's idea of m-making m- m-merry.
From The Voyage of the Hoppergrass by Edmund Lester Pearson
Benzene, for instance, is easily converted into the m-disulphonic acid by gently heating with fuming sulphuric acid; stronger heating converts the m- into the p-disulphonic acid, and at 190° C. the trisulphonic acid is formed.
From Synthetic Tannins by Georg Grasser
It is hence possible to employ crude cresol, which contains varying quantities of the o-, m-, and p-compounds, in the manufacture of these tanning matters.
From Synthetic Tannins by Georg Grasser
The M- | 11, with a range of about 180 miles, is capable of carrying nuclear warheads.
From Time Magazine Archive
Another major irritant was introduced last August when the U.S. imposed a ban on the sale of sensitive technology to China, claiming Beijing had violated an international agreement by selling M- 11 missiles to Pakistan.
From Time Magazine Archive
Soft- drink vendors hawked their wares as rebel soldiers slouched atop U.S.-made M- 41 tanks, idly awaiting victory.
From Time Magazine Archive
Mr. M-, of whom I told you, has been in every corner of the far East—Java, Sumatra, everywhere—and is extremely amusing.
From Letters from the Cape by Lady Lucie Duff Gordon
"You knew I was at M-?" he stammered.
From The Man in Lower Ten by Mary Roberts Rinehart
On Thursday at 1 p. m., a service will be held at Acacia Memorial Park in Lake Forest Park, with full military honors.
From Seattle Times ● Jan. 31, 2022
Tours: Tuesday through Saturday from 12:45 p.m. to 3 p. m., subject to availability.
From Washington Post ● Feb. 7, 2019
Lobbying groups for bees remain small, but funding from groups such as Project Apis m., which has contributed $6 million toward bee research since 2006, is helping uncover methods to protect bee populations.
From Washington Times ● Aug. 28, 2016
Danielle Downey, director of operations for the nonprofit group Project Apis m., examines bees on a frame.
From National Geographic ● Jun. 27, 2016
One of the runaways said, again, “Let m. go back. Let me go back,” and stood still, and then turned around and said, over his shoulder, “I am going back.”
From "Harriet Tubman: Conductor on the Underground Railroad" by Ann Petry
"We're advising that you continue to give children a vaccine that has decades of safety data," added Aaron M. Milstone, member of the AAP Committee on Infectious Diseases.
From Barron's ● Aug. 10, 2026
District Judge Maxine M. Chesney appointed Anandkumar to ensure compliance with her February order that ICE provide “constitutionally adequate healthcare” at the detention center.
From Los Angeles Times ● Jul. 28, 2026
Lime, with one long-term shareholder, George M. Doumet, controlling a stake of more than 60% through Inberdon Enterprises, as verified by FactSet.
From MarketWatch ● Jul. 15, 2026
“It’s not a magic bullet,” said Jeffrey M. Hirsch, a professor of law at the University of North Carolina who studies employment issues.
From The Wall Street Journal ● Jul. 14, 2026
He thought about a quote from the novelist E. M. Forster: “If I had to choose between betraying my country and betraying my friend, I hope I should have the guts to betray my country.”
From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin
It was a feast day and everyone was celebrating, but M's daughter stayed in her room crying.
From Barron's ● Aug. 11, 2026
Woodall and Weisz didn’t discuss M’s relationship with Vladimir during filming.
From Los Angeles Times ● Feb. 26, 2026
"The stars aligned... we'll be friends for life," said Andrea, Hollie M's mum.
From BBC ● Dec. 17, 2025
The first official, the head of the Military Police’s Investigation and Prisons Branch, said there was no approval to hand over M’s body to his family.
From The Wall Street Journal ● Nov. 19, 2025
Lift me like a little child That I may dwell with— I tapped M's.
From "A Long Way from Chicago" by Richard Peck
Ms Mullan described her daughter Amelia as "a ray of sunshine," who "had the most beautiful curls and a creativity that shone through everything that she did".
From BBC ● Jul. 31, 2026
"It is obvious that Ms Ghost, a 49 year old woman, should have appreciated the inappropriateness of her conduct regardless of whether there was any sexual motivation or conduct," the judgement read.
From Barron's ● Jul. 22, 2026
The court found an inconsistency in Ryan's evidence over whether he had grabbed or only touched Ms Gordon's wrists.
From BBC ● Jul. 14, 2026
Ms Sturgeon is innocent, as evidenced by the fact that she was not charged, prosecuted nor convicted of any crime.
From BBC ● Jul. 13, 2026
Hector, who was so afraid of what I am because Ms mother told him to be.
From "Insurgent" by Veronica Roth
Why is it that the three m’s seem to have so much bipartisan appeal?
From Slate ● Nov. 6, 2020
Ryan, what's the pitching rotation going to look like in a couple years for the m's?
From Seattle Times ● Aug. 18, 2019
Imagine if Ackley had just hesitated, held his ground and then the m's hit into an inning-ending double-play?
From Seattle Times ● Jun. 27, 2011
Among the telltale tidbits scrutinized are the size and slant of the script, how the t's are crossed and whether the m's and n's are round, pointed or wedge-shaped.
From Time Magazine Archive
When another sentence was begun I made a fresh start, this time I was pulled up by the word ‘synonymous,’ I knew there were some n’s and m’s in it, but not how many.
From Curious Church Customs and Cognate Subjects by William Andrews
In Australia, Surfshark’s ping times ranged from 229 to 281 ms, while NordVPN’s latency was slightly lower, averaging 210 to 260 ms.
From Salon ● Mar. 27, 2026
In Australia, Surfshark’s ping times ranged from 281 to 422 ms, while NordVPN’s latency was lower — between 292 and 406 ms — based on test data.
From Salon ● Mar. 27, 2026
When small creatures touch the fine trigger hairs on the outside of the door, it opens inwards within 0.5 ms.
From Science Daily ● Nov. 20, 2024
After another 2.50 ms, or a total of 5.00 ms, the current declines to 0.368 of the value just found.
From Textbooks ● Aug. 12, 2015
One evening we went to move an attractive young woman who found it charming to spell the name Kim with an h, a y, and two ms.
From "Me Talk Pretty One Day" by David Sedaris
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
