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Co

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Symbol, Chemistry.

cobalt.

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Definition for Co (2 of 9)

CO

abbreviation

Colorado (approved especially for use with zip code).

Definition for Co (3 of 9)

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).

Definition for Co (4 of 9)

c/o

care of.
Bookkeeping. carried over.
cash order.

Definition for Co (5 of 9)

c.o.

abbreviation

care of.
carried over.

Definition for Co (6 of 9)

Co.

or co.


abbreviation

Company.
County.

Definition for Co (7 of 9)

C/o

care of.
Bookkeeping. carried over.

Definition for Co (8 of 9)

C/O

cash order.
certificate of origin.

Definition for Co (9 of 9)

C.O.

abbreviation

cash order.
Commanding Officer.
conscientious objector.
correction officer.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for Co

British Dictionary definitions for Co (1 of 7)

co

the internet domain name for

a commercial company (used with a country domain name)
Colombia

British Dictionary definitions for Co (2 of 7)

Co1

the chemical symbol for

cobalt

British Dictionary definitions for Co (3 of 7)

Co2

abbreviation for

County

British Dictionary definitions for Co (4 of 7)

Co3

co


abbreviation for

(esp in names of business organizations) Company
and co (kəʊ) informal and the rest of themHarold and co

British Dictionary definitions for Co (5 of 7)

CO

abbreviation for

Commanding Officer
Commonwealth Office
conscientious objector
Colorado
Colombia (international car registration)

British Dictionary definitions for Co (6 of 7)

co-

prefix

together; joint or jointly; mutual or mutuallycoproduction
indicating partnership or equalitycofounder; copilot
to the same or a similar degreecoextend
(in mathematics and astronomy) of the complement of an anglecosecant; codeclination

Word Origin for co-

from Latin, reduced form of com-

British Dictionary definitions for Co (7 of 7)

c/o

abbreviation for

care of
accounting carried over
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for Co (1 of 3)

Co

The symbol for the elementcobalt

Medical definitions for Co (2 of 3)

CO

abbr.

cardiac output

Medical definitions for Co (3 of 3)

co-

pref.

Together; joint; jointly; mutually:coaptation.
Subordinate or auxiliary:coenzyme.
To the same extent or degree:codominant.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for Co

Co

The symbol for cobalt.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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