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 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
A notable example is Kiran Nadar Museum of Art's new Delhi building, set to open in 2026, spanning 100,000 sq m and showcasing both visual and performance art.
From BBC ● Oct. 10, 2025
It seemed like that was the only thing left to do. m o o o . . . from Bow-Wow and Plucky, on the Christian Cyberkidz Network: .
From "Feed" by M.T. Anderson
“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 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’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
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
As avid viewer Ziya M, posting on X just two days after the show's premiere, put it: "Jonasi has the whole nation riled up, external."
From BBC ● Jun. 26, 2026
“Overall, this was a mixed-to-negative print: revenue was only modestly light, but profitability and cash flow were the real issues,” wrote Vinci Zhang, a research analyst at data firm M Science.
From Barron's ● May 12, 2026
"When making tools for chemists, the user interface matters a lot, and previous tools relied on cumbersome filters and rules," says Andres M Bran, the first author of the Synthegy paper published in Matter.
From Science Daily ● May 5, 2026
Jason doesn’t even go to the same school I do. ft T M Jason.
From "Rules" by Cynthia Lord
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 Grasser, Georg
Th-That was F-Father's idea of m-making m- m-merry.
From The Voyage of the Hoppergrass by Pearson, Edmund Lester
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 Grasser, Georg
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 Grasser, Georg
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
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
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 Rinehart, Mary Roberts
This, as an account of Cairo, dear M-, you will probably be disposed to consider as incomplete: the fact is, I have seen nothing else as yet.
From From Cornhill to Grand Cairo by Thackeray, William Makepeace
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
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
For example, Daniel Patrick Moynihan, working for President Richard Nixon at the time, recommended George M. White to be the architect of the Capitol; Nixon liked the idea.
From The Wall Street Journal ● Jul. 24, 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
District Judge Kathleen M. Williams wrote in an order, released on Monday, breaking down the culmination of Trump’s lawsuit against the IRS.
From Slate ● Jul. 14, 2026
“The Constitution is an enduring document,” wrote Justice Brett M. Kavanaugh, but its rules and meaning must adjust to “modern situations that were unknown or unanticipated by the Constitution’s Framers.”
From Los Angeles Times ● Jul. 12, 2026
Even more damaging was the testimony of W. M. Mink, the superintendent at the Homestead Steel Works.
From "1919 The Year That Changed America" by Martin W. Sandler
According to the post, Lebo M’s team has contacted Jonasi to “explore the possibility of a structured settlement.”
From Los Angeles Times ● Mar. 27, 2026
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
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
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
"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
"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
"Our findings show that tau helps determine which cells are selected to store a memory, shaping how an experience forms a lasting memory trace," says Ms Kosonen, a researcher at Flinders' Neuroscience and Dementia Research.
From Science Daily ● Jul. 12, 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
The m's and n's are all alike, and so are most of the other letters.
From Master of the Vineyard by Reed, Myrtle
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
Sz is the z -component of spin angular momentum and ms is the spin projection quantum number.
From Textbooks ● Aug. 12, 2015
She clung to ms hand, striving to detain him.
From "The Awakening" by Kate Chopin
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.
