Co

¹

Symbol, Chemistry.

1. cobalt.

CO

²

abbreviation

1. Colorado (approved especially for use with zip code).

2. commanding officer.

3. conscientious objector.

Co.

³

Or co.

abbreviation

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

1. care of.

2. carried over.

C.O.

⁹

abbreviation

1. cash order.

2. Commanding Officer.

3. conscientious objector.

4. correction officer.

CO

¹

abbreviation

1. Commanding Officer

2. Commonwealth Office

3. conscientious objector

4. Colorado

5. Colombia (international car registration)

co-

²

prefix

1. together; joint or jointly; mutual or mutually

   coproduction

2. indicating partnership or equality

   cofounder

   copilot

3. to the same or a similar degree

   coextend

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

   cosecant

   codeclination

Co

³

abbreviation

1. (esp in names of business organizations) Company

2. informal,  and the rest of them

   Harold and co

c/o

⁴

abbreviation

1. care of

2. accounting carried over

co

⁵

abbreviation

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

2. Colombia

Co

⁶

symbol

1. cobalt

Co

⁷

abbreviation

1. County

Word History and Origins

Origin of Co¹

from Latin, reduced form of _com-

Example Sentences

The impasse was yet another signal of the shifting center of gravity in the media world — one moving away from linear-television stalwarts like the Walt Disney Co.

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Soros Fund Management LLC, the investment firm and family office linked to the billionaire philanthropist, also placed a new bet on Walt Disney Co.

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When Housing Works Cannabis Co. opened nearly three years ago in Lower Manhattan, the line outside the dispensary—the first legal one in the state—wrapped around the block.

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Merck & Co. is buying the developer of an experimental antiviral drug designed to prevent the flu, as the drugmaker aims to counter sales cliffs for two of its biggest drugs.

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But Burns and Co. didn’t discover all this.

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