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
Going on hour 17 of no power with a 1 mo old.
From Seattle Times ● Oct. 25, 2021
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
“Magnificence,” murmured Reznak mo Reznak, “we cannot know that these great nobles mean to join your enemies. More like they are simply making for their estates in the hills.”
From "A Dance with Dragons" by George R. R. Martin
Police said the gun had been reported stolen from a car in Kansas City, Mo.
From Los Angeles Times ● Sep. 22, 2026
Gu’s mother, 35-year-old Mo Chanping, said she bought the Little Genius watch after hearing about it in a group chat with other parents and seeing videos about the watch on WeChat, China’s do-everything app.
From The Wall Street Journal ● Sep. 21, 2026
Michael McIntyre, Jimmy Carr, Aisling Bea, John Bishop and Mo Gilligan are among the comics who will perform at the event.
From BBC ● Sep. 4, 2026
Whether he is pulling a pint, tossing a builder's helmet in the air or running with Olympic medallist Mo Farah, the UK's new prime minister Andy Burnham has embraced social media with a deft touch.
From Barron's ● Aug. 16, 2026
Mo whispered despairingly, "Humbaba of the Seven Auras of Awesomeness."
From "City of the Plague God" by Sarwat Chadda
There needs to be a "different MO", he said.
From BBC ● Sep. 11, 2026
Six years on, with both parents working full-time while tending to 1- and 3-year-old boys, here’s the new MO: “We lock in on what needs to get done so that the team can progress.”
From The Wall Street Journal ● Jun. 19, 2026
“That’s why it’s kind of funny that it’s sort of my MO now, because I was always being described in scripts as a mouse or like, really intelligent but lacked some sense of confidence.”
From Los Angeles Times ● Jul. 30, 2025
Rory turns into sandworm fodder the second he admits his slimy MO, suggesting that the smarmy leech was beyond redemption.
From Salon ● Sep. 9, 2024
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
Put a baby's clothes over him feet first until he reaches 6 mo. to keep him from growing up stunted.
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
Net income, first half 158,696 Net income, 18 mo. ended December 275,622 Reo Motor Car Co.
From Time Magazine Archive
The volumes are in size a small 16 mo., handsomely printed and bound in full flexible leather, stamped in gold.
From A Beautiful Alien by Julia Magruder
With one child and another on the way, the couple has since sold that house and purchased another in St. Louis, Mo. They moved to the more-affordable city to be closer to family.
From MarketWatch ● Sep. 1, 2026
Production of the Stone portfolio will gradually transition to Firestone Walker’s brewery in Paso Robles, Calif., and Duvel USA’s Boulevard brewery in Kansas City, Mo., the joint statement said.
From Los Angeles Times ● Aug. 21, 2026
Miller, a 41-year-old design technician for a steel company in Linn, Mo., also made a protective cap for the sharp end of his garage push broom.
From The Wall Street Journal ● Aug. 15, 2026
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
“Unless you happen to have a cell phone with you,” said Mo. He had not moved from Teresa’s side since Basta had made his escape.
From "Inkheart" by Cornelia Funke
The quartet that Shorter assembled around the turn of the new millennium was his first attempt as a bandleader to revisit and expand upon the all-things-must-explode m.o. of Davis’s 1960s quintet.
From New York Times ● Mar. 2, 2023
And causing other people’s pain is not in my m.o.
From Salon ● May 2, 2019
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
“That's kind of the m.o. of who wins ballgames,” USC Coach Clay Helton said.
From Los Angeles Times ● Nov. 15, 2016
Yeah, that’s always been our m.o., is that we always do stuff we like.
From Slate ● Mar. 16, 2015
"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
Whether she’s being herself or playing Leslie Knope, Poehler’s M.O. has long been catching more flies with honey than vinegar.
From Salon ● Jan. 16, 2026
He said the animal’s behaviors and M.O. were almost identical.
From Los Angeles Times ● Oct. 24, 2025
Lyon to tick off his name on the nominal roll, and then approached the M.O.
From The Fifth Battalion Highland Light Infantry in the War 1914-1918 by F. L. Morrison
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.
