Co
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Symbol, Chemistry.
cobalt.
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Question 1 of 7
Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.
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Definition for Co (2 of 9)
CO
abbreviation
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.