abbr.	a.v.c.	automatic volume control
		abbr.	a.v.e.	automatic volume expansion
		abbr.	a.w.	all width
		abbr.	a.w.p.	actual working pressure
		abbr.	A/C	assistant cashier
		abbr.	A/cs Pay	Accounts payable
		abbr.	A/cs Rec.	accounts receivable
		abbr. med.	A/G	albumin/globulin ratio
		inet.	a/s/l	age/sex/location
		abbr.	A/UX	UNIX version
		abbr.	a/v	average
		abbr.	AAAI	American Association of Artificial Intelligence
		abbr.	AAAL	American Academy of Arts and Letters
		abbr.	AACR2	Anglo-American Cataloguing Rules
		abbr.	AACS	Airways and Air Communications Service
		abbr.	AADFI	Association of African Development Finance Institutions
		abbr.	AAII	American Association of Individual Investors
		abbr.	AAS	American Academy of Science
		abbr.	AASW	American Association of Scientific Workers
		abbr.	AB	about
		abbr.	AB	Air-break
		abbr.	ABCA	American Business Communications Association
		abbr.	ABCA	Association des Banques Centrales Africaines (ACAB; Fr.)
		abbr.	ABCD	A Better Circuit Description Language
		abbr.	ABD	ACP Buffer Descriptor
		abbr.	abl.	ablative (case)
		abbr.	ABS	absolute error
		abbr. comp.	ABSTI	Advisory Board of Scientific and Technological Information
		med.	ac	before meals
		abbr.	ac	account
		abbr.	AC	alternating component
		abbr.	AC	current account
		abbr.	ac rel	alternating-current relay
		abbr. comp.	ACA	American Communications Association
		abbr. tech.	ACA	adjacent-channel attenuation
		abbr. econ.	ACAB	Association of Central African Banks
		abbr.	acc	accidental
		abbr.	ACC	Automatic chrominance control
		abbr.	accel	accelerator
		abbr.	accrd. int.	accrued interests
		abbr.	ACCT	Agency for Cultural and Technical Cooperation
		abbr.	ACCW	alternating-current continuous-wave transmitter
		abbr.	ACD	Automatic Call Distributing system
		abbr.	ACED	Alternating Current Electro-luminescent Display
		abbr.	ACEI	Accessing Centre of Engineering Information (Japan)
		med.	acet	acetone
		abbr.	aCL	anticardiolipin (antibody)
		abbr. comp.	ACL	Association for Computational Linguistics
		abbr. comp.	ACO	Adaptive Control Optimisation
		abbr. comp.	ACO	Alternate Checksum Option
		abbr.	ACP	Ancillary Control Process
		abbr. comp.	ACPA	Association for Computer Programmers and Analysts
		abbr.	ACSR	aluminium cable steel reinforced
		abbr.	ACTPU	Activate Physical Unit
		abbr.	ACU	Address Computation Unit
		abbr.	ACW	Accessibility Wizard
		abbr. file.ext.	AD	AfterDark screensaver module (AfterDark)
		abbr.	AD	Anno Domini, in the year of our Lord
		lat.	ad lib	ad libitum (at one's pleasure)
		med.	ad lib	as desired, freely
		abbr.	ADA	Americans for Democratic Action
		abbr. comp.	ADAPSO	Association of Data Processing Service Organization
		abbr.	ADB	Application DataBase
		abbr. astr.	ADC	Astronomical Data Centre
		abbr.	add's'd	addressed
		abbr. cryptogr.	ADFGVX	A bilateral substitution cipher used during World War II
		abbr. comp.	ADP	Administrative Data Processing
		abbr. comp.	ADP	Advanced Data Processing
		abbr. comp.	ADPC	Automatic Data Processing Centre
		abbr.	ads	advertisements
		abbr.	adse	addressee
		abbr. comp.	ADT	Application Design Tool
		abbr.	adt	advertisement
		abbr. comp.	ADU	Application Definition Unity
		abbr. tech.	AEI	Association of Electrical Industries
		abbr. tech.	AERA	American Electric Railway Association
		abbr. tech.	AEREA	American Electric Railway Engineering Association
		abbr. tech.	AES	Aerodrome Emergency Service
		abbr. tech.	AES	American Electromechanical Society
		abbr.	aet.	aetatis
		abbr.	aet.	aged
		abbr.	AEW	aircraft early warning
		abbr.	AFL-CIO	American Federation of Labour-Congress of Industrial Organizations
		abbr.	AFO	Audio-Frequency Overlay
		abbr. comp.	AFP	Advanced Functions Printer
		abbr. econ.	AFSCME	American Federation of State, County, and Municipal Employees
		abbr.	AFTRA	American Federation of Television and Radio Arts
		abbr. astr.	AGN	Active Galactic Nuclei
		abbr.	AGP	Accelerated Graphic Port
		abbr.	AH	anno Hegirae, in the year of the Hegira
		abbr.	AIA	Aircraft Industrial Association
		abbr.	AIB	Advanced Information Bulletin
		abbr.	AICE	American Institute of Consulting Engineers
		abbr.	AIDA	Attention, Interest, Desire, Action
		abbr.	AIF	Atomic Industrial Forum
		abbr. file.ext.	AIFF	Audio Interchange Format File (AIFF)
		abbr. file.ext.	AIN	Archive format (AIN archiver)
		abbr. mil.	AIS	Automatic Intercept System
		abbr.	AIS	Association of Industrial Scientists
		abbr.	AISC	American Institute of Steel and Iron

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