mo
noun
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mo
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Mo
Momolybdenum.
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MO
MOabbreviationmethod of operation.
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-mo
-moa suffix occurring in a series of compounds that describe book sizes according to the number of leaves formed by the folding of a single sheet of paper.
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mo.
mo.abbreviationmonth.
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Mo.
Mo.abbreviationMissouri.
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m.o.
m.o.abbreviationmail order.
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M.O.
M.O.abbreviationmail order.
mo
1 American
[moh]
/ moʊ /
noun
Informal.
Mo
2
American
Symbol, Chemistry.
MO
3
American
abbreviation
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method of operation.
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Missouri (approved especially for use with zip code).
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mode of operation.
-mo
4
American
mo.
5
American
abbreviation
mos
plural
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month.
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months.
Mo.
6
American
abbreviation
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Missouri.
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Monday.
m.o.
7
American
abbreviation
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mail order.
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modus operandi.
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money order.
M.O.
8
American
abbreviation
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mail order.
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manually operated.
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Medical Officer.
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method of operation.
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mode of operation.
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modus operandi.
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money order.
MO
1
British
abbreviation
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Missouri
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Medical Officer
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modus operandi
mo
2
British
/ məʊ /
m.o.
3
British
abbreviation
-
mail order
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money order
Mo
4
British
symbol
Mo.
5
British
abbreviation
-mo
6
British
suffix
mo
7
British
abbreviation
Usage
What else does MO mean? MO—it's a multifunctional set of letters. MO is commonly used as an abbreviation for modus operandi, meaning “mode of operating or working.” It’s also commonly a postal abbreviation for Missouri. You may not always encounter mo in uppercase letters in informal contexts in digital communication. So, two other widespread, popular uses of mo you may encounter are: Mo, a guy’s name, and mo, a dialectical pronunciation of more. In the U. K. and other English-speaking places around the world, mo is a slang shortening of the word moment. How is MO pronounced?[ em-oh ] or [ moh ]What are some variants of MO?or M. O. or mo' or moWhat are some other words related to MO?
Etymology
Origin of mo1
By shortening
Origin of -mo4
Combining form extracted from duodecimo
Vocabulary lists containing mo
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:
Although history does not celebrate the first skin-eaters, cultures around the world enjoy their recipes — whether Brazilian torresmos, Canadian scrunchions, Indonesian krupuk kulit, Jewish gribenes, Mexican cueritos, Slavic cvarci or Vietnamese tóp mo.
From Washington Post ● Feb. 21, 2023
“No mo magic please and thank you,” they wrote.
From Los Angeles Times ● Oct. 13, 2022
It can do all the modes that matter in terms of 4K and slow mo and handles them all super well.
From The Verge ● Sep. 21, 2021
But it’s the mo hanh, caramelized scallions and scallion-flavored oil, that make this banh mi sing.
From Seattle Times ● Sep. 3, 2020
“In the pit, in chains,” wailed Reznak mo Reznak.
From "A Dance with Dragons" by George R. R. Martin
“Loudoun was called the breadbasket of the Revolution,” said Denise Mo, executive director of the Loudoun Heritage Farm Museum.
From The Wall Street Journal ● Jul. 2, 2026
But this turn doesn’t define Mo or his overall arc, which tightly focuses on the constant hustle, creativity and sense of humor required to survive as an immigrant in this country.
From Salon ● Jul. 1, 2026
Now I don't think Mo Salah can cope with that type of football anymore.
From BBC ● May 18, 2026
It’s still a popular stop, 25 miles west of Springfield, Mo.
From Los Angeles Times ● May 12, 2026
Mo sitting cross-legged in the dust and ruins, smiling.
From "City of the Plague God" by Sarwat Chadda
The company’s shares change hands for 21 times expected earnings, a 70% premium to Altria MO -0.21%decrease; down pointing triangle and BAT.
From The Wall Street Journal ● Jul. 9, 2026
Back in April, Walmart announced that it was in the process of removing self-checkouts and returning to regular checkouts in its store in Shrewsbury, MO, a suburb of St. Louis.
From Salon ● Jul. 17, 2024
But the specific deal with Alonso, a free agent after this season, would be a departure from the Mariners’ typical MO under Jerry Dipoto.
From Seattle Times ● Jun. 1, 2024
Indeed, her MO is a little closer to Buster Keaton’s.
From Los Angeles Times ● Oct. 4, 2023
He knew there was • MO • no shame in crying.
From "The Dead and the Gone" by Susan Beth Pfeffer
“It’s key that need for reform is understood, but we don’t need 6 mo. of study,” he wrote.
From New York Times ● Oct. 22, 2020
At Worland, Wyo., lives Doris Johnson, 19 mo., one of many U. S. children crippled by burns.
From Time Magazine Archive
Slip Near Los Angeles Mr. & Mrs. A. J. Tarpley were motoring with their two daughters, Marjorie, 3 mo., and Catherine, 2.
From Time Magazine Archive
Poor St. Louis, mo. everyone has a tear or two for gritty cities facing hard times--for the Detroits, the Clevelands--but who spares a thought for the elegant dowager reduced to reusing tea bags?
From Time Magazine Archive
The fearless Garrett communicated through the mail, as usual, the following intelligence: WILMINGTON, 8th mo. 25th, 1859.
The elder Iwerks met fellow artist Walt Disney when both men were teenagers working at a Kansas City, Mo., art studio.
From Los Angeles Times ● Jul. 12, 2026
Chris Tinen, a customer in St. Louis, Mo., said AI-driven cuts to insurance agents’ compensation were a painful necessity.
From The Wall Street Journal ● Jul. 8, 2026
Sheila was raised in Kansas City, Mo., and moved to New York where she worked as a registered nurse but also had a background in theater.
From Los Angeles Times ● Jun. 23, 2026
Voters in Festus, Mo., ousted four city council members a week after they approved a $6 billion data center.
From The Wall Street Journal ● May 19, 2026
“Pippo’s picked the chocolate chips out of the cake,” Meggie heard her whisper as she looked anxiously up at Mo. When his eyes twinkled at her she disappeared behind Fenoglio’s back, giggling.
From "Inkheart" by Cornelia Funke
Winkler’s essential m.o. in life, we learn, is to try to make everyone love him because his Holocaust survivor parents didn’t.
From New York Times ● Oct. 24, 2023
Reacting defines her persona and the cultural m.o. of her memoir.
From Los Angeles Times ● Sep. 23, 2020
And causing other people’s pain is not in my m.o.
From Salon ● May 2, 2019
Chanos’s m.o. is to take large short positions in stocks and wait for them to fall to what he considers fair value.
From Slate ● Jul. 6, 2018
Its m.o., sour beers and Neapolitan-style pizza, continues at the new Fremont location, but there will be an extensive fresh-pasta menu, sandwiches, tacos and a full bar with a biodynamic wine program.
From Seattle Times ● Dec. 4, 2017
Fusing couture-level spectacle with crowd-pleasing performance has long been Jacobs’ M.O.
From Salon ● Mar. 27, 2026
"I feel like in my career I've won on tough golf courses generally, so that's my M.O., I would say," said 2025 Masters runner-up Rose, who led by a shot after an opening-round 62.
From BBC ● Jan. 31, 2026
Bending Spoons’ M.O. is apparent from even a cursory look at its portfolio and record.
From Slate ● Jan. 23, 2026
With its slow pacing, shaky handheld cameras, dishwater cinematography and unnervingly extreme closeups, it feels more like an intense indie drama than a whimsical tale of a robber with a peculiar M.O.
From The Wall Street Journal ● Oct. 9, 2025
We found the road dotted with dead mules and horses, but could not find the M.O. for some time.
From The Incomparable 29th and the "River Clyde" by Davidson, George
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.
