C - Abbreviations list
 c
cancelled | canine | carat | carbon (paper) | carton | case | catcher | caught | cedi | cent | centavo | centi- | centime | centimetre | centre | century | chapter | charm | chrominance | church | circa | circuit | circumference | clockwise | cloudy | coefficient | cold | colon | colour | colt | concentration | constant | consul | contralto | copy | copyright | corps | cost | cubic | curie | the speed of light in a vacuum
 C
capacitance | cape | carbon | castle | Catholic | Celsius | centi- | centigrade | century | Chancellor | charm | chief | city | college | Companion | Congress | Conservative | corps | coulomb | court | cytosine | heat capacity
 C2B
consumer-to-business
 C2C
consumer-to-consumer
 ca
Canada | circa
 Ca
calcium
 CA
California | Central America | Central American | certificate authority | certified accountant | chartered accountant | chief accountant | chronological age | consular agent | Consumers’ Association
 c/a
current account
 C/A
capital account | credit account | current account
 CAA
Civil Aviation Authority
 CAAT
certificate authority administration tool
 Cab
Cabernet Sauvignon
 CAB
Citizens Advice Bureau | Civil Aeronautics Board
 CABG
coronary artery bypass graft
 CAC
Central Arbitration Committee
 CAD
cash against documents | computer-aided (or -assisted) design
 CADCAM
computer-aided (or -assisted) design and manufacturing (or manufacture)
 CAE
computer-aided (or -assisted) engineering
 CAF
cost and freight
 CAI
computer-assisted (or -aided) instruction
 cal
calorie
 Cal
large calorie
 CAL
calendar | calibre | computer-assisted (or -aided) learning
 Cal.
California
 Calif.
California
 CAM
complementary and alternative medicine | computer-aided (or -assisted) manufacturing (or manufacture) | content-addressable memory
 Camb.
Cambridge
 Cambs.
Cambridgeshire
 CAMRA
Campaign for Real Ale
 can.
cancellation | cancelled | cannon | canon | canto
 Can.
Canadian | Canada
 canc.
cancellation | cancelled
 C and F
cost and freight
 C and G
City and Guilds
 C & I
cost and insurance
 C and M
care and maintenance
 CANDU
Canada deuterium-uranium (reactor)
 C and W
country and western
 cannot
can not
 can’t
cannot
 Cant.
Canterbury | Canticle of Canticles
 CAP
Common Agricultural Policy | computer-aided (or -assisted) production | computer-aided (or -assisted) publishing
 cap.
capacity | capital | capital letter | capitalize | caput
 CAPD
continuous ambulatory peritoneal dialysis
 CAPEX
capital expenditure
 CAPM
capital asset pricing model
 caps.
capital letters | capsule
 Capt.
Captain
 car.
carat
 Card.
Cardinal
 CARE
Cooperative for American Relief Everywhere
 Carib.
Caribbean
 CARICOM
Caribbean Community and Common Market
 CARIFTA
Caribbean Free Trade Association
 CAS
calibrated airspeed
 CASE
computer-aided (or -assisted) software engineering | computer-aided (or -assisted) systems engineering
 CAT
clear-air turbulence | College of Advanced Technology | computer-aided (or -assisted) testing | computer-assisted (or -aided) trading | computer-assisted (or -aided) training | computerized axial tomography | control action threshold
 cath.
cathode
 Cath.
cathedral | Catholic
 CATV
community antenna television
 CAV
constant angular velocity
 cav.
cavalry
 CB
call back | cash book | chateau-bottled | Citizens Band | Companion of the (Order of the) Bath | cumulonimbus
 CBC
Canadian Broadcasting Corporation
 cbd
cash before delivery
 CBD
cash before delivery | central business district
 CBE
Commander of the (Order of the) British Empire
 CBI
computer-based instruction | Confederation of British Industry
 CBOT
Chicago Board of Trade
 CBR
constant bit rate
 CBS
Columbia Broadcasting System
 CBT
computer-based training
 CBW
chemical and biological warfare
 cc
carbon copy | chapters | Cocos Islands | cubic capacity | cubic centimetre
 CC
City Council | close corporation | County Council | Cricket Club
 CCA
cardholder certificate authority | current-cost accounting
 CCAB
Consultative Committee of Accountancy Bodies
 CCD
charge-coupled device
 CCF
Combined Cadet Force
 CCITT
Comité Consultatif International Téléphonique et Télégraphique
 CCTV
closed-circuit television
 CCU
coronary care unit
 cd
candela
 Cd
cadmium | command (paper)
 CD
carrier detect | certificate of deposit | Civil Defence | compact disc | Corps Diplomatique
 c/d
carried down | cum dividend
 CD-E
compact disc erasable
 cdf
cumulative distribution function
 CD+G
compact disc and graphics
 CDH
congenital dislocation of the hip
 CD-I
compact disc interactive
 CDM
Clean Development Mechanism
 cDNA
complementary DNA
 Cdr
Commander
 CDR
Commander
 CD-R
compact disc recordable
 Cdre
Commodore
 CD-ROM
compact disc read-only memory
 CDRTOS
compact disc real-time operating system
 CD-RW
compact disc rewritable
 CDSC
contingent deferred sales charge
 CDT
Craft, Design, and Technology
 CDTV
Commodore Dynamic Total Vision
 CDV
compact disc video
 CD-WO
compact disc write once
 Ce
cerium
 CE
Church of England | chemical engineer | chief engineer | civil engineer | Common Era | consumption efficiency | creative editing | Communaute Européenne
 CEGEP
Collège d’Enseignement Général et Professionnel
 CEIC
closed-end investment company
 cen.
central | century
 CENELEC
Comité Européen de Normalisation Electrotechnique
 CEng
chartered engineer
 cent.
centigrade | central | century
 CEO
chief executive officer
 CERN
Conseil Européen pour la Recherche Nucléaire
 CERT
computer emergency response team
 cert.
certificate | certification | certified
 CET
Central European Time | common external tariff
 cf
Central African Republic
 Cf
californium
 CF
Chaplain to the Forces | Compact Flash | cost and freight | cystic fibrosis
 cf.
compare
 c/f
carried forward
 CFA
Communauté financière africaine
 CFC
chlorofluorocarbon
 CFE
College of Further Education | Conventional Forces in Europe
 cfi
cost, freight, and insurance
 CFM
chlorofluoromethane
 CFO
chief financial officer
 CFP
Common Fisheries Policy | Colonies françaises du Pacifique
 CFR
cost and freight
 cfs
cubic feet per second
 CFS
chronic fatigue syndrome
 CFT
complement fixation test
 cg
centigram | Congo
 CG
captain general | centre of gravity | coastguard | Consul General
 CGA
colour graphics adapter
 CGBR
Central Government Net Cash Requirement
 cge
carriage | charge
 CGI
common gateway interface | computer-generated image | computer-generated imagery
 cgm
centigram
 CGM
Conspicuous Gallantry Medal
 CGNCR
Central Government Net Cash Requirement
 cgs
centimetre-gram-second
 CGS
Chief of General Staff
 CGT
capital gains tax
 ch
Switzerland
 CH
clearing house | Companies House | Companion of Honour | custom house
 ch.
chain | chapter | charge | check | church
 Ch.
channel | central heating | China
 C/H
central heating
 CHAI
Commission for Healthcare Audit and Improvement
 Chanc.
chancellor | chancery
 chap.
chaplain | chapter
 CHAPS
Clearing House Automated Payments System
 ChB
Bachelor of Surgery
 CHC
child health clinic | community health council
 CHCP
change codepage
 CHD
coronary heart disease
 CHDIR
change directory
 chem.
chemical | chemist | chemistry
 Ches.
Cheshire
 CHESS
Clearing House Electronic Subregister System
 chg.
change | charge
 CHI
Commission for Health Improvement
 CHIPS
Clearing House Interbank Payments System
 CHKDSK
check disk
 ChM
Master of Surgery
 CHP
combined heat and power
 Chr.
Christ | Christian | Chronicles
 chron.
chronicle | chronological | chronology
 Chron.
Chronicles
 chronol.
chronological | chronology
 ci
Côte d’Ivoire
 Ci
cirrus | curie
 CI
Cayman Islands | Channel Islands
 CIA
Central Intelligence Agency
 CIB
Chartered Institute of Bankers | Criminal Investigation Branch
 CICA
Canadian Institute of Chartered Accountants
 CID
cattle identification document | consider it done | Criminal Investigation Department | crying in disgrace
 CIDR
classless interdomain routing
 CIF
common intermediate format | cost, insurance, and freight | customer identification file
 c.i.f.c.i.
cost, insurance, freight, commission, and interest
 CIFE
colleges and institutes for further education
 CII
Chartered Insurance Institute
 CIM
computer input microfilm | computer-integrated manufacturing
 CIN
cervical intraepithelial neoplasia
 C in C
Commander in Chief
 CIO
chief information officer
 CIPD
Chartered Institute of Personnel and Development
 CIR
current instruction register
 cir.
circa | circle | circuit | circulation | circumference
 CIRO
context, input, reaction, outcome
 CIS
Commonwealth of Independent States | contact image sensor
 CISC
complex instruction set computer
 CIT
computer-integrated telephony
 cit.
cited | citizen
 CITES
Convention on International Trade in Endangered Species (of Wild Fauna and Flora)
 CIVC
Comité Interprofessionel du Vin de Champagne
 CIX
commercial Internet exchange
 CJ
Chief Judge | Chief Justice
 CJD
Creutzfeldt-Jakob disease
 ck
Cook Islands
 CKD
completely knocked down
 CKO
Chief Knowledge Officer
 cl
carload | centilitre | Chile
 Cl
chlorine
 cl.
class | classification | clergy | closet | cloth
 class.
classic | classical | classification | classified
 cld
called
 CLI
calling line identification
 Cllr
Councillor
 clm
column
 CLM
career limiting move
 CLNP
connectionless network protocol
 CLS
clear screen
 CLV
constant linear velocity
 cm
Cameroon | centimetre
 Cm
curium
 CM
category management | central memory | compounding method
 c.m.
centre of mass | court martial
 CMA
Canadian Medical Association | certified medical assistant
 CMBS
commercial mortgage-backed securities
 Cmdr
Commander
 CME
Chicago Mercantile Exchange
 CMEA
Council for Mutual Economic Assistance
 CMG
Companion of the Order of St Michael and St George
 CMI
computer-managed instruction
 CMIP
common management information protocol
 cml
commercial
 CML
computer-managed learning | Council of Mortgage Lenders
 CMO
Chief Medical Officer
 c’mon
come on
 CMOS
complementary metal oxide semiconductor
 CMV
cytomegalovirus
 CMYK
cyan, magenta, yellow, black
 cn
China
 C/N
charge nurse | cover note | credit note
 CNAA
Council for National Academic Awards
 CNAR
compound net annual rate
 CNC
computer numeric control | Conseil National de la Comptabilité
 CNCC
Compagnie Nationale des Commissaires aux Comptes
 CND
Campaign for Nuclear Disarmament
 CNN
Cable News Network
 CNS
central nervous system
 co
Colombia
 Co
cobalt
 CO
carbon monoxide | Colorado | Colorado Officer | Commonwealth Office | conscientious objector
 Co.
Colorado | Company | County
 c/o
care of | carried over
 CoA
coenzyme A
 COAD
chronic obstructive airways disease
 COAG
Council of Australian Governments
 COB
Commission des Opérations de Bourse
 COBOL
common business-oriented language
 COD
cash on delivery | chemical oxygen demand
 coef.
coefficient
 C of C
chamber of commerce
 C of E
Church of England
 C of S
chief of staff
 COGS
cost of goods sold
 COHSE
Confederation of Health Service Employees
 COI
Central Office of Information
 COL
computer-oriented language | cost of living
 col.
college | colony | colour | column
 Col.
Colonel | Colorado | Colossians | Columbia | Columbian
 COLA
cost-of-living adjustment | cost-of-living allowance
 coll.
collateral | colleague | collect | collection | collector | college | collegiate | colloquial
 colloq.
colloquial
 Colo.
Colorado
 com
commercial organization
 COM
Component Object Model, Common Object Model | computer output microfilm
 com.
comedy | comic | commerce | commercial | committee | commune
 Com.
Commander | Commodore | Communist
 comb.

combination | combining | combustion

 Comdr
Commander
 Comdt
Commandant
 Comecon
Council for Mutual Economic Assistance
 COMEX
(New York) Commodity Exchange
 comm.
commerce | commercial | committee | commonwealth
 comp.
companion | comparative | compare | compensation | compilation | compiled | complete | composer | composite | composition | compound | comprehensive | comprising
 compar.
comparative
 compd
compound
 CON
console
 con.
concerto | conclusion | connection | consolidated | continued | contra
 Con.
Conformist | Conservative | Consul
 conc.
concentrated | concentration | concerning | concerto | concession
 conf.
confer | conference | confessor | confidential
 confed.
confederate | confederation
 Cong.
Congregational | Congress | Congressional
 conj.
conjugation | conjunction | conjunctive
 CONS
connection-oriented network services
 cons.
consecrated | consigned | consignment | consonant | constitution| constitutional
 Cons.
Conservative | Constable | Constitution | Consul
 const.
constant | constitution
 cont.
containing | contents | continent | continental | continued | continuous | contraction | control
 contd
continued
 contr.
contraction | contralto | control
 contrib.
contribution | contributor
 Conv.
Conventual
 COO
chief operating officer
 coop
cooperative
 COPD
chronic obstructive pulmonary disease
 cor.
corner | cornet | correction | correspondence | correspondent
 Cor.
Corinthians
 CORBA
common object request broker architecture
 CORE
Congress of Racial Equality
 CORGI
Council for Registered Gas Installers
 Corn.
Cornwall
 corp.
corporation
 Corp.
Corporal | Corporation
 corr.
correct | corrected | correction | correspondence | correspondent
 cos
cosine
 COS
cash on shipment | chief of staff
 COSATU
Congress of South African Trades Unions
 cosec
cosecant
 cot
cotangent
 CoT
college of technology
 cotan
cotangent
 co.uk
UK commercial organization
 couldn’t
could not
 could’ve
could have
 cov
covariance
 Coy.
company
 CP
Canadian Press | Cape Province | card punch | chat post | chemically pure | command post | commercial paper | Communist Party | Country Party
 cp.
compare
 CPA
certified public accountant | cost per acquisition | critical path analysis | customer profitability analysis
 CPAP
continuous positive airways pressure
 cpd
compound
 CPF
Central Provident Fund
 cpi
characters per inch
 CPI
consumer price index
 CPIX
measure of the pace of inflation in Canada
 Cpl
Corporal
 CPM
cost per thousand | critical path method
 CPN
community psychiatric nurse
 CPO
Chief Petty Officer | cost per order
 CPP
current purchasing power
 CPR
Canadian Pacific Railway | cardiopulmonary resuscitation
 CPRE
Council for the Protection of Rural England
 cps
characters per second | cycles per second
 CPS
Crown Prosecution Service
 CPSA
Civil and Public Services Association
 CPSU
Community and Public Service Union
 CPT
cost per thousand
 Cpt.
Captain
 CPU
central processing unit
 CQ
charge of quarters
 cr
Costa Rica
 Cr
chromium | Councillor
 CR
carriage return | Community of the Resurrection | conditioned reflex | conditioned response | Costa Rica | credit | critically endangered
 cr.
credit | creditor | creek
 CRB
Criminal Records Bureau
 CRC
cyclic redundancy check
 CRE
Commission for Racial Equality
 Cres.
Crescent
 cresc.
crescendo
 CREST
Central Securities Depository for the UK and Ireland
 criminol.
criminology
 crit.
critic | critical | criticism
 CR/LF
carriage return/line feed
 CRM
customer relationship management | customer relations management
 CRNA
certified registered nurse anaesthetist
 CRO
cathode-ray oscilloscope | Community Relations Officer | Companies Registration Office | Criminal Records Office
 CRP
Central Reserve Police
 CRT
cathode-ray tube
 cryst.
crystalline | crystallography
 Cs
caesium
 CS
capital stock | chartered surveyor | chief of staff | chip select | Christian Science | Christian Scientist | civil service | Court of Session
 CSA
Child Support Agency
 CSB
chemical stimulation of the brain
 csc
cosecant
 CSC
Civil Service Commission
 CSE
Certificate of Secondary Education
 CSEU
Confederation of Shipbuilding and Engineering Unions
 CSF
cerebrospinal fluid
 CS gas
a gas that causes tears, salivation, and painful breathing, used in riot control and warfare
 CSIRO
Commonwealth Scientific and Industrial Research Organization
 CSLIP
compressed serial line Internet protocol
 CSM
combined symbol matching | Company Sergeant-Major
 CSMA-CD
carrier sense multiple access-collision detection
 CSO
Central Statistical Office
 CSP
commerce service provider
 C-SPAN
Cable Satellite Public Affairs Network
 CSS
cascading style sheet | Certificate in Social Service
 CST
Central Standard Time | convulsive shock treatment
 CSU
Civil Service Union
 CSYS
Certificate of Sixth Year Studies
 ct
cent
 Ct
Count
 CT
Central Time | computed (or computerized) tomography | Connecticut
 ct.
certificate
 CTC
City Technology College | Cyclists’ Touring Club
 CTD
cumulative trauma disorder
 CTI
computer-telephony integration
 ctn
carton | cotangent
 CTO
chief technical officer
 CTR
clickthrough rate
 Ctrl
control (key)
 CTS
clear to send
 CTT
capital transfer tax
 CTV
Canadian Television Network Limited
 cu
Cuba
 Cu
copper
 CU
control unit
 cu.
cubic
 CUL
see you later
 Cumb.
Cumbria
 cum div.
cum dividend
 CUTS
Computer Users’ Tape System
 cv
Cape Verde
 CV
Cape Verde | Cross of Valour | curriculum vitae
 CVA
cerebrovascular accident
 CVE
Certificate of Vocational Education
 CVO
Commander of the Royal Victorian Order
 CVS
chorionic villus sampling | Council of Voluntary Service
 CW
chemical warfare | chemical weapons | continuous wave
 CWO
cash with order | Chief Warrant Officer | Chief Web officer
 CWP
communicating word processor
 CWS
Cooperative Wholesale Society
 cwt
hundredweight
 cx
Christmas Island
 cXML
commerce XML (Extensible Markup Language)
 cy
Cyprus
 CYA
see ya
 CYL
see you later
 cyl.
cylinder | cylindrical


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Abbreviations