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:
The 14 sq m visitor centre, at 3m tall, would stand against her garden fence and rise almost a metre above it.
From BBC ● Aug. 27, 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
In a ceremony of great pride, I solemnly crossed Plato off my list. m .
From "Hunger of Memory" by Richard Rodriguez
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
There, an ailing playwright named M lives with his wife, S—who is an actress—and their precocious daughter, Ruby.
From The Wall Street Journal ● Sep. 1, 2026
The state-owned body cited the collapse of three of its early investments - including its first, Glasgow-based laser company M Squared.
From BBC ● Aug. 24, 2026
It seems M has perfected the art of using candor as a carapace, so that the image of her authentic self recedes the more Cusk’s writer spends time with her.
From Los Angeles Times ● Aug. 24, 2026
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
Coach M said we weren’t going to start hitting until he could see what he had; and I was okay with that because I was weak and felt so shitty after what I'd gone through.
From "Winger" by Andrew Smith
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
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
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
"I reckon I've forgot the name, but the message was that this fellow—Sullivan was his name—was at M-, and if the man had escaped from the wreck would he come to see him."
From The Man in Lower Ten by Mary Roberts Rinehart
Dr. M- also would be glad of a copy.
From Letters from the Cape by Lady Lucie Duff Gordon
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
Written on the back of it was “idlewild m. 5.2.36.”
From "Bud, Not Buddy" by Christopher Paul Curtis
Concurring, Justice Brett M. Kavanaugh agreed it was too late to enforce the new rules for this election.
From Los Angeles Times ● Sep. 14, 2026
Each contains an addendum to the mortgage that is used for rental properties, said New Jersey real estate lawyer Daniel M. Shlufman.
From Salon ● Sep. 5, 2026
Over time, M. aurita had been reclassified as a subspecies of the Chinese pangolin.
From Science Daily ● Aug. 26, 2026
The Amicus bonus episode revisits a 2021 conversation among Dahlia Lithwick, Judge Edward M. Chen, and Don Tamaki, members of the legal team that overturned Korematsu v.
From Slate ● Aug. 20, 2026
‘This’ll be fun. I’m somebody beginning with an M. Guess who I am.’
From "The Heart is a Lonely Hunter" by Carson McCullers
In later scenes, M has died and S’s main conversation partner is an artificial-intelligence voice agent that was trained on M’s writing.
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
“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
The M’s also traded for super utilityman Brendan Donovan, who, as a member of the St. Louis Cardinals, was named an All-Star for the first time in his career last season.
From Los Angeles Times ● Mar. 24, 2026
Tanisha’s up there with all the B’s, and here I am standing in my holey tube socks, sandwiched between all the M’s and N’s, with Beatriz tailing right behind me.
From "Like Vanessa" by Tami Charles
He said it was emotional being back, and a privilege to catch up with Ms Meek.
From BBC ● Sep. 9, 2026
BBC Wales reunited Ms Meek and Sam at St Michael's Catholic Primary School in Pontypridd, where she first taught him 25 years ago.
From BBC ● Sep. 9, 2026
"Ms Meek and the other adults there planted seeds in me that I probably couldn't see at the time, but they became part of the foundation I grew from," he said.
From BBC ● Sep. 9, 2026
"This is a complete misunderstanding, Your Honour. My client was trying to get a picture of Ms Clancy," Light's attorney Jennifer White said in court.
From BBC ● Sep. 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
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
It only seems yesterday when he was spelling 'Hamilton' with three m's.
From The Keepers of the King's Peace by Edgar Wallace
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
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
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.
