Co

¹

Symbol, Chemistry.

1. cobalt.

CO

²

abbreviation for

1. Colorado (approved especially for use with zip code).
2. commanding officer.
3. conscientious objector.

Co.

³

or co.

abbreviation for

1. Company.
2. County.

c/o

⁴

1. care of.
2. Bookkeeping. carried over.
3. cash order.

C/o

⁵

1. care of.
2. Bookkeeping. carried over.

C/O

⁶

1. cash order.
2. certificate of origin.

co-

⁷

1. 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 ).

c.o.

⁸

abbreviation for

1. care of.
2. carried over.

C.O.

⁹

abbreviation for

1. cash order.
2. Commanding Officer.
3. conscientious objector.
4. correction officer.

Co

¹

abbreviation for

1. County

Co

²

the chemical symbol for

1. cobalt

co-

³

prefix

1. together; joint or jointly; mutual or mutually

   coproduction

2. indicating partnership or equality

   copilot

   cofounder

3. to the same or a similar degree

   coextend

4. (in mathematics and astronomy) of the complement of an angle

   cosecant

   codeclination

Co

⁴

abbreviation for

1. esp in names of business organizations Company
2. and co informal.
   and the rest of them

   Harold and co

c/o

⁵

abbreviation for

1. care of
2. accounting carried over

CO

⁶

abbreviation for

1. Commanding Officer
2. Commonwealth Office
3. conscientious objector
4. Colorado
5. Colombia (international car registration)

co

⁷

the internet domain name for

1. a commercial company (used with a country domain name)
2. Colombia

Word History and Origins

Origin of Co¹

from Latin, reduced form of com-

Example Sentences

Fed up with Los Angeles traffic, Elon Musk launched The Boring Co. with two tweets in 2016, promising “to build a tunnel boring machine and just start digging.”

From Los Angeles Times

As the future clouds for Walt Disney Co.’s lucrative theme parks business, one bright spot continues to be its cruise line.

From Los Angeles Times

A representative for the Jim Henson Co. did not immediately respond to a request for comment on the sale.

From Los Angeles Times

The officials missed not one, but two apparent penalties on one key play late in the Cincinnati Bengals-Baltimore Ravens showdown Thursday night that could have cost Joe Burrow and Co. the game.

From Los Angeles Times

“When it comes to our elected representatives, at least my generation, it’s more about what you stand for,” Krause said at the DSA’s election night party, held at Audio Graph Beer Co. in downtown.

From Los Angeles Times

Related Words

• administration
• administrator
• boss
• chief
• commander
• director
• entrepreneur
• government
• leader
• management
• manager
• officer
• official
• supervisor