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
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
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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:
I have the Tongan seal and motto “Ko e ʻOtua mo Tonga ko hoku tofiʻa,” which means “God and Tonga are my inheritance,” tattooed on my left arm.
From Los Angeles Times ● Apr. 5, 2023
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
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
“Dont go in dar no mo, now. I’ll send Luster up soon as I find him. Let him alone, now.”
From "The Sound and the Fury" by William Faulkner
“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
It’s located at the local History Museum on the Square in Springfield, Mo.
From Los Angeles Times ● May 12, 2026
Zanardi found a seat back in Cart in 2001, driving for a team set up by his former Ganassi engineer Mo Nunn.
From BBC ● May 2, 2026
But most of all, it was how Mo gazed at the camera, and the guy behind it.
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
“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
Net income, first half 158,696 Net income, 18 mo. ended December 275,622 Reo Motor Car Co.
From Time Magazine Archive
At the age of 18 mo. the prodigy, referred to only as "K," could converse fluently.
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
Signed on behalf of our Monthly Meeting held at Cedar Creek, 8 mo. 24th, 1781.
From Dorothy Payne, Quakeress A Side-Light upon the Career of 'Dolly' Madison by Barnard, Ella Kent
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
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
In Montgomery City, Mo., Mr. Moskowitz observes, “people got out in their nightclothes to see the racers roar through” at 3:50 a.m.
From The Wall Street Journal ● May 21, 2026
He was raised in Kansas City, Mo., and splits time between Los Angeles and the house outside his hometown that he shares with his longtime romantic partner, Katie Crutchfield of the band Waxahatchee.
From The Wall Street Journal ● May 12, 2026
So many times I had wanted to leave, to go on exciting trips with Mo. Now I couldn't think of anywhere I'd rather be.
From "City of the Plague God" by Sarwat Chadda
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
“You saw exactly the m.o. of what David would love to have,” Helton said.
From Los Angeles Times ● Nov. 28, 2017
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
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
A little after midnight we were requested to send a M.O. and as many nursing orderlies as possible to the Inniskillings Aid Post, where they were said to be overwhelmed with work.
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.
