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
contraction
-
(verb) am
-
(noun) madam
yes'm
m
3
British
symbol
-
metre(s)
-
mile(s)
-
milli-
-
minute(s)
M'-
4
British
prefix
M
5
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-
6
British
prefix
m.
7
British
abbreviation
-
cricket maiden (over)
-
male
-
mare
-
married
-
masculine
m-
8
British
prefix
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 tracker continuously follows the Sun throughout the day and directs sunlight into a 20 m plastic multimode optical fiber.
From Science Daily ● May 18, 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
And Google is building two data centres, totalling £450m, spread over 400,000 sq m in north east London in the Lee Valley water system.
From BBC ● Aug. 14, 2025
“Nwunye m, sometimes life begins when marriage ends.”
From "Purple Hibiscus" by Chimamanda Ngozi Adichie
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
Then I wrote a small ‘i’ and a small ‘m.’
From "The Great Santini" by Pat Conroy
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
Some of them, called M type asteroids, contain large quantities of iron, nickel, and other useful metals.
From Science Daily ● Aug. 7, 2026
President Reagan, saying he is “a bit wiser” after two failed attempts to put a hard-line conservative on the Supreme Court, today picked federal appeals Judge Anthony M.
From Los Angeles Times ● Jul. 26, 2026
Military spokesperson Lt-Col Haruna M Sani described the assault on Boko Haram's Mandara mountain hideout, "under cover of darkness", as one of the military's "most significant hostage rescue operations" in the north-east.
From BBC ● Jun. 7, 2026
He takes a card from his pocket that contains only the letter M and an address.
From "The Night Circus" by Erin Morgenstern
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
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
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
Th-That was F-Father's idea of m-making m- m-merry.
From The Voyage of the Hoppergrass by Edmund Lester Pearson
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
The M- | 11, with a range of about 180 miles, is capable of carrying nuclear warheads.
From Time Magazine Archive
The picture had been taken, they said, at M-, just two miles beyond the scene of the wreck.
From The Man in Lower Ten by Mary Roberts Rinehart
We got out at M-, a small place with two or three houses and a general store.
From The Man in Lower Ten by Mary Roberts Rinehart
Tours: Tuesday through Saturday from 12:45 p.m. to 3 p. m., subject to availability.
From Washington Post ● Feb. 7, 2019
The launch party starts at 7 p. m., though the band will likely perform at around 8:30-9:30 p.m.
From Seattle Times ● Jan. 11, 2017
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
Written on the back of it was “idlewild m. 5.2.36.”
From "Bud, Not Buddy" by Christopher Paul Curtis
“As perverse as it sounds, a desperate employee isn’t bad for the employer,” says Eric M. VanEpps, an associate professor of marketing at Vanderbilt University and another one of the researchers.
From The Wall Street Journal ● Aug. 18, 2026
But we have more control over our balance than we may realize, urges Duke University balance researcher, Kristal M. Riska, who’s president of the American Balance Society.
From Los Angeles Times ● Aug. 18, 2026
"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
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
“B-b-because there is no R. M. Wildsmith,” she says, hiccuping.
From "How to Disappear Completely" by Ali Standish
It was a feast day and everyone was celebrating, but M's daughter stayed in her room crying.
From Barron's ● Aug. 11, 2026
“The Disappearing Act” is more of a thought experiment about M’s effort to become “invisible and free.”
From The Wall Street Journal ● Mar. 26, 2026
Child M's mother said the family have since left Southport due to their traumatic experiences.
From BBC ● Sep. 8, 2025
He apologizes for his mistake, but M’s frustration suggests a complicated history that the play doesn’t have time to delve into.
From Los Angeles Times ● Apr. 16, 2025
The next morning, she pulled out her Rolodex and flipped to the M’s: Manwill, Elizabeth.
From "Little Fires Everywhere" by Celeste Ng
The most infectious song on the album is Ms Paper, which takes a detour into Bouyon – a Dominican music characterised by high tempos and frantic percussion.
From BBC ● Aug. 12, 2026
Ms Mullan said she tried to save her family and that night would haunt her forever.
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
"This was a traumatic and horrific event for Ms Lees, and for Peter's family, who have now gone such a long time without the answers they deserve," Dole said.
From BBC ● Jul. 14, 2026
Perhaps it was because he had never known a mother of Ms own, so that the rdle of mother love, as she stood with her children behind her, took him between wind and water.
From "The Once and Future King" by T. H. White
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
In Chinese, for example, the Methodist Episcopal Mission becomes, literally, "the doubly beautiful society," because there are two m's in M. E. M., and the Chinese pronounces m as "may," and "may" means "beautiful."
From Time Magazine Archive
A million m's was paid for in 1717-40 with 26.93 Prussian sheffels of rye; 1804-47 with from 24.80 to 28.80.
From Principles of Political Economy, Vol. II by Wilhelm Roscher
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
Upload speeds were generally stable, though ping times increased significantly on distant servers — reaching over 500 ms in Australia — which could introduce noticeable lag during gaming or video calls.
From Salon ● Mar. 21, 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
Verify that after a time of 10.0 ms, the current for the situation considered in Example 23.9 will be 0.183 A as stated.
From Textbooks ● Aug. 12, 2015
The first part, commit, has two ms but just one t.
From "Woe Is I" by Patricia T. O'Conner
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.
