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
“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
The changes to England's Biodiversity Net gain rules exclude developments under 2,000 sq m of land under a drive to make it easier to build homes on smaller sites.
From BBC ● Dec. 16, 2025
“Ama m atu tnu. I even know proverbs.”
From "Americanah" by Chimamanda Ngozi Adichie
“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
Macy’s M -0.60%decrease; red down pointing triangle raised its full-year outlook and logged higher profit and sales during the first quarter, as its turnaround strategy continued to bear fruit.
From The Wall Street Journal ● Jun. 3, 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
Speaking to BBC Sport from the $228 million Arthur M Blank training complex, which opens this week, Batson said "think of it as St George's Park, but slightly bigger and obviously newer".
From BBC ● May 6, 2026
She had found the delicate charms online, a tiny gold M and a tiny gold peach, and used the money from her old clothing boutique job to pay for them.
From "Far from the Tree" by Robin Benway
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
Th-That was F-Father's idea of m-making m- m-merry.
From The Voyage of the Hoppergrass by Pearson, Edmund Lester
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
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
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
Her husband is an Indian Mussulman, who, Mr. M- said, was one of the ablest men he ever knew.
From Letters from the Cape by Duff Gordon, Lucie, Lady
M- Malvolio; M- why, that begins my name.
From Twelfth Night; or What You Will by Shakespeare, William
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
And Faber was out; there in the deep valleys of the country somewhere the five a. m. bus was on its way from one desolation to another.
From "Fahrenheit 451" by Ray Bradbury
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
Orator William M. Evarts declared: “I tell you that when the statue of Washington sustains in its firm hand the splintered flag-staff of Fort Sumter, it means something.”
From The Wall Street Journal ● Jul. 3, 2026
The historian Kevin M. Kruse has shown that the rise of religious language reflected domestic political concerns as well.
From Salon ● Jun. 29, 2026
The modern Harvard Cornell partnership began in 1958 under Harvard archaeologist George M. A. Hanfmann and Cornell architect Henry Detweiler from the College of Architecture, Art and Planning, whose expertise centered on documenting historic buildings.
From Science Daily ● Jun. 25, 2026
“J. M. Barrie was swept to Neverland because he was snatched from the countryside by a shadow,” Auntie North said.
From "The Way to Rio Luna" by Zoraida Cordova
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
A healthy Kirby could make a huge difference this season for an already formidable M’s rotation.
From Los Angeles Times ● Mar. 24, 2026
French media reported that Thomas M's role as head butler and keeper of precious silver involved setting the tables at state dinners and other prestigious events.
From BBC ● Dec. 22, 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
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
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
"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
It was claimed a freelance journalist was asked to "blag" travel details for Ms Bonas.
From BBC ● Jul. 7, 2026
The hearing in front of the Lady Chief Justice, Lord Justice Edis and Ms Justice Norton is listed for two days.
From BBC ● Jul. 1, 2026
We've all got strong opinions here, and \Ms our responsibility to get them heard.
From "The Remains of the Day" by Kazuo Ishiguro
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
Those words with two m's or two l's in them get me right down on the mat.
From T. Tembarom by Burnett, Frances Hodgson
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
If the initial sample contains 3.4 x 1017 parent nuclei, how many are remaining after 35 ms have elapsed?
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.
