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
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-
5
British
prefix
M'-
6
British
prefix
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:
Here, E again represents energy, m is the particle's mass, and c is the speed of light.
From Science Daily ● Mar. 10, 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
This includes a substantial 354 sq m aisled building to the south east of the villa - which the team believes was either some sort of barn or meeting hall.
From BBC ● Jan. 11, 2026
“So, Diego, where m Colorado are you from?”
From "We Are the Ants" by Shaun David Hutchinson
“I ‘m not going back to Woodstock for a while / Though I love to see that lonesome hippie smile,” sang Neil Young in 1974.
From Los Angeles Times ● Nov. 12, 2023
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 wandering the ghostly hallway of the 50th floor, the high rollers’ floor, of what was once the Trump Taj Mahal Hotel and Casino in Atlantic City.
From Washington Post ● Mar. 12, 2018
Then I wrote a small ‘i’ and a small ‘m.’
From "The Great Santini" by Pat Conroy
It is the first time a pop album has won the coveted prize - which recognises the best British or Irish album of the last 12 months - since M People's Elegant Slumming in 1994.
From BBC ● Oct. 22, 2026
She won an Academy Award for best supporting actress for playing Queen Elizabeth I in Shakespeare in Love in 1999, and became internationally recognised for her portrayal of "M", James Bond's boss.
From BBC ● Oct. 22, 2026
“I’ve made some changes in my lifestyle,” said Fan, who opted for a $3 coffee at local chain M Stand on a recent Friday afternoon instead of a $6 drink at Starbucks.
From The Wall Street Journal ● Oct. 19, 2026
Most recently, his firm M Strategic Communications took on Lineage as a client in the aftermath of the toxic fire at its cold-storage warehouse in Boyle Heights.
From Los Angeles Times ● Sep. 28, 2026
Then he draws a red line between the M and the P and hands it to me.
From "Fish in a Tree" by Lynda Mullaly Hunt
Th-That was F-Father's idea of m-making m- m-merry.
From The Voyage of the Hoppergrass by Edmund Lester Pearson
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
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
Same for the latest Apple M- and A-series chips, engines that can run AI models locally on iPhones—maybe why Apple hasn’t joined the AI data-center spending delirium.
From The Wall Street Journal ● Oct. 11, 2026
The M- | 11, with a range of about 180 miles, is capable of carrying nuclear warheads.
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
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
After a half hour's wait we took a local for M-, the station near which the cinematograph picture had been taken.
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
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
FOR MORE: Call The Land of Nod at 800-933-9904 from 8:30 a. m. to 5 p.m.
From Seattle Times ● Jun. 24, 2016
She erected a big white sign in the front yard on which she had carefully painted, in black letters with gold outlines, r. m. walls art studio.
From "The Glass Castle" by Jeannette Walls
Chun-Li, played by Liang, recruits the pair to compete with other elite fighters in the World Warrior tournament, organised by crime boss M. Bison.
From BBC ● Oct. 16, 2026
The accessibility and pervasiveness of betting platforms makes the possibility of corrupting jurors a real risk, said University of Chicago law professor M. Todd Henderson.
From The Wall Street Journal ● Oct. 11, 2026
“A government that is actually meeting its constitutional obligations has no reason to fear public scrutiny,” said Alvaro M. Huerta, director of litigation and advocacy at the Immigrant Defenders Law Center.
From Los Angeles Times ● Oct. 8, 2026
The most well-thought-out example is a Foreign Affairs essay published in August by Kurt M. Campbell and Rush Doshi, who served on the National Security Council during the Biden administration.
From Slate ● Oct. 8, 2026
This would prevent him from surviving in the wild, so he stayed with Dr. Taylor M. Martin at the sanctuary.
From "A Bird Will Soar" by Alison Green Myers
The bulk of the book, especially the passages from M’s journals, are given to dewy philosophizing on the purpose of creation.
From The Wall Street Journal ● Sep. 1, 2026
Alternating with these vignettes are lengthy excerpts from M’s bohemian heyday of 2023—three journals and a short screenplay.
From The Wall Street Journal ● Sep. 1, 2026
It was a feast day and everyone was celebrating, but M's daughter stayed in her room crying.
From Barron's ● Aug. 11, 2026
Such viral statements, it says, are interfering with Lebo M’s business relationships with Disney and his income from royalties, causing more than $20 million in actual damages.
From Los Angeles Times ● Mar. 27, 2026
The next morning, she pulled out her Rolodex and flipped to the M’s: Manwill, Elizabeth.
From "Little Fires Everywhere" by Celeste Ng
Though Ms Nina’s “Tu Sicaria” makes its way onto the playlist some nights, his resident DJs mostly stick to the classics at their parties, and that’s intentional.
From Los Angeles Times ● Oct. 22, 2026
Jorgelina Andrea del Valle Torres, the Argentine neoperreo artist known as Ms Nina, also remembers those first parties affectionately.
From Los Angeles Times ● Oct. 22, 2026
It added: "While we cannot disclose the details of individual employment matters, we want to reassure Ms Boardman that we have treated this extremely seriously."
From BBC ● Oct. 21, 2026
"I watched Ms Maharani's videos because I was looking for more information. They gave additional knowledge... so it helped me to think more carefully," she said.
From Barron's ● Oct. 2, 2026
Because what if she mentions something to Ms.
From "The Wrong Way Home" by Kate O’Shaughnessy
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
Part of the reason the m's haven't moved Ichiro is the poor hitting by Justin Smoak until very recently.
From Seattle Times ● May 15, 2012
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
I remember a line in Thomson's "Castle of Indolence" which owes much of its fascination to three m's, where he speaks of the Hebrid Isles Far placed amid the melancholy main.
From The Function of the Poet and Other Essays by James Russell Lowell
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
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
A current of 5.00 A in one is switched off in 1.00 ms, inducing a 9.00 V emf in the other.
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
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
