Definition for co (2 of 9)

CO


Colorado (approved especially for use with zip code).
Commanding Officer.
conscientious objector.

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)

Definition for co (5 of 9)

c.o.


care of.
carried over.

Definition for co (6 of 9)

c/o


care of.
Bookkeeping. carried over.
cash order.

Definition for co (7 of 9)

C/o


care of.
Bookkeeping. carried over.

Definition for co (8 of 9)

C.O.


cash order.
Commanding Officer.
conscientious objector.
correction officer.

Definition for co (9 of 9)

C/O


cash order.
certificate of origin.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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)

Co

1

the chemical symbol for

cobalt

British Dictionary definitions for co (3 of 7)

Co

2

abbreviation for

County

British Dictionary definitions for co (4 of 7)

Co

3

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

Medicine definitions for co (1 of 2)

Co


The symbol for the elementcobalt

Medicine definitions for co (2 of 2)

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.

Science definitions for co (1 of 2)

Co


The symbol for cobalt.

Science definitions for co (2 of 2)

cobalt

[ kōbôlt′ ]

Co

A silvery-white, hard, brittle metallic element that occurs widely in metal ores. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.