Achaemenid
AKA
Adair
Abigail
Aberystwyth
Addison
Aberdeen
Adelia
Abelson
Abelard
APS
ACM
Adam
Achilles
ARPA
Abrams
ALU
Addams
Abelmosk
Adige
Abel
Accra
Adamite
Abilene
Aceldama
Aaronic
ASCII
AK
Accrington
Abbeydale
Ackerman
Acton
Abram
Aachen
Actaeon
Abos
Adirondacks
Achitophel
Abyssinians
ASAP
ARCO
Abernathy
Ada
Addington
Aalesund
Abbado
Abelian
Achaean
Adele
Aargau
AAA
Abele
Achernar
Achates
Actinia
Abyssinia
Ackley
Absalom
Aarhus
Abbott
Aden
Abidjan
Abyssinian
Actium
AAAS
AMA
ACS
Acis
AL
Abernethy
Abraxas
Abravanel
Abba
AZ
Adar
Adelaide
Acta
Addis
Acapulco
AI
Adams
Aaron
Abraham
Abbevillian
AC
AR
Abe
Aalborg
AAU
Acadia
ASTM
ANSI
Abu
Abramson
Adenauer
Adamson
Acarus
Adirondack
Abner
Addressograph