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
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
“Ekene nke udo—ezigbo nwanne m nye m aka gi.”
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 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
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 not even sure this car is going to make it.”
From "Miracles on Maple Hill" by Virginia Sorensen
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
"I'll reach out to John M, he's a very thoughtful man. See you soon I hope. All best Keir."
From BBC ● Jun. 2, 2026
I’d been invisible but for some reason I went up and changed the M to a P. All the kids laughed, including Ms. Mills.
From The Wall Street Journal ● May 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
The big green M on Stargirl’s white sweater flounced as she spun and leaped with the other cheerleaders.
From "Stargirl" by Jerry Spinelli
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
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
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
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
And last of all came a letter from M-.
From Mark Twain's Letters — Volume 4 (1886-1900) by Paine, Albert Bigelow
"One afternoon he had a long waltz with M- in the ballroom."
From Alfred Tennyson by Lang, Andrew
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
Another said “loogootee in. 5.16.11,” then there was “stuigis m. 8.30.12” and “gary in. 6.13.12,” and the last one said, “flint m. 8.11.11.”
From "Bud, Not Buddy" by Christopher Paul Curtis
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
Veda’s story unfolds in “Mildred Pierce,” the classic James M. Cain novel and 1945 Joan Crawford film.
From Los Angeles Times ● Jun. 29, 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
That’s another thing to add to Dr. Taylor M. Martin’s very impressive list.
From "A Bird Will Soar" by Alison Green Myers
Woodall and Weisz didn’t discuss M’s relationship with Vladimir during filming.
From Los Angeles Times ● Feb. 26, 2026
The £1.4m takeover by Warpaint will see the closure of Barry M's factory in the capital and puts 100 jobs at risk.
From BBC ● Feb. 9, 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
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
Lift me like a little child That I may dwell with— I tapped M's.
From "A Long Way from Chicago" by Richard Peck
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
"To be clear, we believe Ms Mann's account and her credibility as a witness," Manhattan District Attorney Alvin Bragg Jr said.
From BBC ● Jun. 25, 2026
Ms Yates said she was currently acting for 21 claimants.
From BBC ● Jun. 21, 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
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
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
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 Lowell, James Russell
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
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
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
The spin projection quantum number can have two values, ms = 1 / 2 or − 1 / 2 .
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.
