mo
noun
Jump To:
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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
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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:
Her improvised chorus is simple; a dozen times, she repeats “Mo ti de, mo ti de le,” which means “I’ve arrived. I’ve come home” in Yoruba.
From Los Angeles Times ● Sep. 21, 2023
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
Looks like they’re ganging up trying to make an honest man out of me, a lo mo, natural born hustler!
From The New Yorker ● Dec. 2, 2019
“Park yer arse a mo, mush, round the fire. Help us, one of yer...”
From "Black Swan Green" by David Mitchell
Could Wall Street be losing some of its Big Mo?
From The Wall Street Journal ● Oct. 14, 2026
“It was a soda,” fellow Colts tight end Mo Alie-Cox wrote on X, adding an emoji with an eyebrow raised and another one crying laughing.
From The Wall Street Journal ● Sep. 25, 2026
Remarkably, it came off the back of his lowest score the year before - although low for Mo was still upwards of 200 points.
From BBC ● Sep. 16, 2026
Mo, 21, is a law student from the West Midlands, who is a self-confessed "chaotic and random" character who wants to make his family proud.
From BBC ● Sep. 8, 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
Altria MO 0.59%increase; green up pointing triangle posted higher sales in the first quarter as higher pricing offset lower volumes.
From The Wall Street Journal ● Apr. 30, 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
“Oh, big surprise. Maddie’s running away! That’s your MO anytime you come across something you don’t know how to handle.”
From "From Twinkle, with Love" by Sandhya Menon
“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
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
Coursers competed for three stakes: the Sapling, for hounds under 16 mo.; the Futurity, for those under 22 mo.; the Derby, an all-age event which is called the Waterloo at the Coursing Association's autumn meet.
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
That you may enjoy the protection of Heaven and live long and happy is the ardent wish of, Sir, Yr. mo. obt. hbl. serv.,
From Patrick Henry by Moses Coit Tyler
Johnathan Duncan, won a city council race in Kansas City, Mo., in 2023 thanks in part to his work with Kansas City Tenants, the city’s tenants union.
From MarketWatch ● Oct. 6, 2026
And in Warrenton, Mo., where the firm has a project under development, it decided to cover admission for spectators at football games this season.
From The Wall Street Journal ● Sep. 17, 2026
In Independence, Mo., one city councilman lost a recall vote Tuesday by 68% due to his support for a data center.
From Los Angeles Times ● Sep. 7, 2026
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
“In what kind of letters?” inquired Mo. “Is Basta going to scratch them into the paper with his knife?”
From "Inkheart" by Cornelia Funke
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
But I think that we have an m.o. now that is pretty much in place and is not so hit and miss any more.
From New York Times ● Mar. 24, 2014
"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
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
Within, by the fire, she was laughing with the M.O. and drinking a cup of tea—a harmless amusement.
From A Diary Without Dates by Enid Bagnold
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