Architectural Abbreviations and Acronyms
-   ATMOSAtmospheric
 -   ATTAltitude
 -   ATTAttenuation
 -   AUSSIERoyal Australian Air Force
 -   AUTHauthorized, authority
 -   AUTOAutomatic
 -   AVGAverwge
 -   AVGAverage Voltage Gain
 -   AWAcid Waste
 -   AWGAmerican Wire Gauge
 -   AWMAutomatic Washing Machine
 -   AWSAmerican Welding Society's
 -   AWWAAmerican Water Works Association
 -   AWWAAmerican Water Works Association (Denver)
 -   AXAxis
 -   AXX-Axis Acceleration
 -   AZNitrogen
 -   BABathroom
 -   BABulb Angle
 -   BAFBaffle
 
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