Co
cobalt.
Jump To:
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Co
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CO
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Co.
Co.abbreviationCompany.
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c/o
c/ocare of.
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C/o
C/ocare of.
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C/O
C/Ocash order.
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co-
co-variant of com- before a vowel, h, and gn: coadjutor; cohabit; cognate . The prefix co- now productively forms new words from bases beginning with any sound (co-conspirator; co-manage; coseismic ), sometimes with the derived sense “auxiliary, subsidiary” (coenzyme; copilot ), and, in mathematics and astronomy, with the sense “complement” (codeclination ).
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c.o.
c.o.abbreviationcare of.
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C.O.
C.O.abbreviationcash order.
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co
coabbreviationa commercial company (used with a country domain name)
Co
1 AmericanSymbol, Chemistry.
CO
2
American
Co.
3
American
Or
co.
abbreviation
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Company.
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County.
c/o
4
American
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care of.
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Bookkeeping. carried over.
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cash order.
C/o
5
American
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care of.
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Bookkeeping. carried over.
C/O
6
American
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cash order.
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certificate of origin.
co-
7
American
c.o.
8
American
abbreviation
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care of.
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carried over.
C.O.
9
American
abbreviation
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cash order.
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Commanding Officer.
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conscientious objector.
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correction officer.
CO
1
British
abbreviation
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Commanding Officer
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Commonwealth Office
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conscientious objector
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Colorado
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Colombia (international car registration)
co-
2
British
prefix
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together; joint or jointly; mutual or mutually
coproduction
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indicating partnership or equality
cofounder
copilot
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to the same or a similar degree
coextend
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(in mathematics and astronomy) of the complement of an angle
cosecant
codeclination
Co
3
British
abbreviation
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(esp in names of business organizations) Company
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informal and the rest of them
Harold and co
c/o
4
British
abbreviation
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care of
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accounting carried over
co
5
British
abbreviation
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a commercial company (used with a country domain name)
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Colombia
Co
6
British
symbol
Co
7
British
abbreviation
Etymology
Origin of co-
from Latin, reduced form of com-
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:
His startup has raised $10 million from investors including Los Angeles-based Slauson & Co.,
From Los Angeles Times ● Aug. 28, 2026
That sent long-term rates plunging but they rebounded on Thursday, with Mark Malek, of Muriel Siebert & Co, calling it "a housekeeping move destined to be short-term, at best".
From Barron's ● Aug. 21, 2026
The smartphone maker hasn’t spent nearly as much money as fellow Big Tech companies on AI, and its foundation models are “far from the frontier” level and “subpar,” according to Rothschild & Co Redburn analysts.
From MarketWatch ● Aug. 17, 2026
AMP has partnerships including a 20% stake in China Life Pension Co.
From The Wall Street Journal ● Aug. 7, 2026
Need location of publisher: Silver Burdett and Co.
From "Music and the Child" by Natalie Sarrazin
Images of Air Force One parked at the Turkish airport show vehicles labeled with the logo of a catering company called Turkish DO & CO.
From The Wall Street Journal ● Aug. 13, 2026
CO chondrites, also called carbonaceous chondrites of the Ornans class, represent only a very small portion of that group.
From Science Daily ● Jul. 19, 2026
Pennington's hometown was Glendale, Kentucky, and he was assigned to the 1st Space Battalion, 1st Space Brigade out of Fort Carson, CO.
From Barron's ● Mar. 10, 2026
“What Eric voted for was a resolution to condemn a horrific antisemitic attack in Boulder, CO that killed Karen Diamond, an 82-year old grandmother,” a campaign spokesman said in a statement.
From Los Angeles Times ● Jan. 28, 2026
During the last hour—often a “freebie” period, when most inmates were out at rec or at their programs and their cells were deadlocked—most gallery officers found a chair and another CO to chat with.
From "Newjack: Guarding Sing Sing" by Ted Conover
Kimmel alluded to the Walt Disney Co. network’s ongoing dispute with FCC Chairman Brendan Carr as the reason for the switch.
From Los Angeles Times ● Sep. 10, 2026
Buyout firm KKR & Co. is backing Malaysian provider Avisena Healthcare with a minority growth investment.
From The Wall Street Journal ● Sep. 8, 2026
Goldman Sachs, Morgan Stanley, JPMorgan, Allen & Co. and Jefferies are lead bookrunners on the deal, meaning they will command most of the work and the fees.
From The Wall Street Journal ● Sep. 7, 2026
After a decade split between a Chicago law firm and First Chicago Capital Markets, a financial services and securities brokerage, Walter founded an investment firm, Liberty Hampshire Co., in 1996.
From Los Angeles Times ● Sep. 5, 2026
Listen to the scheme they’ve come up with to get a message to Mr. Broks, an Opekta Co. sales representative and friend who’s surreptitiously hidden some of our things for us!
From "The Diary of a Young Girl" by Anne Frank
By filling out a form online or downloading the claim form and then mailing it to Facebook Consumer Privacy User Profile Litigation, c/o Settlement Administrator, 1650 Arch Street, Suite 2210, Philadelphia, PA 19103.
From Los Angeles Times ● Apr. 18, 2023
Donations may be made online at www.miap.us or mailed to Missing in America Project, c/o John Hundahl, 1507 S. Quillan St., Kennewick, WA 99338.
From Seattle Times ● Apr. 10, 2018
From lesser-known labels such as Vetements, Off-White c/o Virgil Abloh and Yang Li to global companies such as Dries Van Noten, Rick Owens, Prada and Maison Margiela, luxury now comes with unfinished hems.
From Washington Post ● Apr. 7, 2015
Contact Getting Around at [email protected] or c/o the Chicago Tribune, 435 N. Michigan Ave., Chicago, IL 60611; on Twitter @jhilkevitch; and at facebook.com/jhilkevitch.
From Chicago Tribune ● Dec. 14, 2014
You may return expense advance to Lovelace Foundation c/o me.
From "Women in Space" by Karen Bush Gibson
As I have only four weeks in which to complete my work here and get to London a 'collect reply by cable to C/o Colonel Sellheim, Australian Intermediate Base, Cairo, would greatly oblige.
From Gallipoli Diary, Volume 2 by Sir Ian Hamilton
The box was a gift from Felix Hoffmann, chief curator at C/O Berlin gallery, which he made in 2013.
From The Wall Street Journal ● Nov. 3, 2015
His personal project, Anniversaries, will be exhibited at C/O Berlin from June 20 to August 16.
From Time ● Jun. 5, 2015
Freeze frame … the C/O Gallery focuses on photography.
From The Guardian ● Aug. 17, 2011
C/O was thus founded to rectify Berlin’s undervaluing of art photography.
From New York Times ● Dec. 26, 2010
A decade later, the scene has since caught up — though C/O remains at the epicenter, having shown the likes of Robert Frank and Nan Goldin.
From New York Times ● Dec. 26, 2010
The co- leader of Aberdeen City Council, Ian Yuill, told BBC Scotland News it had been the most intense and sustained period of snow he could remember in more than 50 years.
From BBC ● Jan. 6, 2026
“Happy Father’s Day to my baby daddy and rad co- parent,” she captioned a pair of family photos.
From Los Angeles Times ● Nov. 4, 2025
He added, "We are committed to advancing our efforts to transform the prospect of a universal treatment, capable of controlling co- and serial infections of respiratory viruses and bacteria, into a reality."
From Science Daily ● Mar. 18, 2024
“The Yamnaya are extraordinary,” says the study’s co- author Volker Heyd, an archaeologist at the University of Helsinki.
From Scientific American ● Mar. 3, 2023
And I don’t want to give up the fun I have with my co- workers, especially Don Lucho with his gold tooth.
From "The Queen of Water" by Laura Resau
It seemed significant that our hero came clean about killing his c.o., the darkest element of Don Draper’s origin story, after initially lying about his rank.
From Slate ● May 11, 2015
Last week he got the Board to order the trial of a c.o. for incompetence.
From Time Magazine Archive
A New Yorker of draft age, Seeger claimed exemption as a conscientious objector, but he was an unusual sort of c.o.
From Time Magazine Archive
He had said that his "humanitarian beliefs" forbade him to bear arms, but lost an appeal to the President for classification as a c.o.
From Time Magazine Archive
Investigators pronounced him sincere in his beliefs, but the draft authorities followed the Justice Department's advice and ruled that, by the letter of the law, he could not be considered a c.o.
From Time Magazine Archive
Alec Ginsberg, a fourth-generation pharmacist who owns C.O.
From MarketWatch ● Jul. 23, 2026
Instead, it was “so many people screaming, screaming to talk to each other. Screaming for assistance: ‘Yo, C.O., my toilet flooded.
From Slate ● May 19, 2025
“Bud” Adams Jr.; television executive and producer Roone Arledge; longtime Oilers/Titans scout C.O.
From Seattle Times ● Jul. 7, 2022
Men on their bars watched the C.O. pick up, nod, hang up and walk to different cells.
From New York Times ● Apr. 6, 2021
Only the day before, his C.O. had given Milton a new assignment in the upcoming invasion.
From "Middlesex: A Novel" by Jeffrey Eugenides
Iraola and co head back to their base in Chicago with a win under their belt but well aware that this is just the start.
From BBC ● Jul. 26, 2026
How Stokes, McCullum and co would love something similar.
From BBC ● Jun. 3, 2026
In 2014, I was part of the side that returned home with our tails between our legs after losing 5-0 to Mitchell Johnson and co.
From BBC ● Jun. 2, 2026
The work was co led by Henn and Simon Gravel of McGill University.
From Science Daily ● Apr. 26, 2026
When I got to the trailer, I was able to say what I had been waiting all week to spring on her: "Chi co khoe khong?"
From "Counting by 7s" by Holly Goldberg Sloan
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.
