AS

• Astern

• Asylee

• Asylum Seeker

AT

• ATA

• ATB

• ATC

• Athletic Or Sports Coverage

• Atlantic Fare

• Atlantic Standard Time

• Atlas

• ATM

• Atol

• Atoll

• Atrium

• Attendance

• Attendance Building

• Attendees

• Attitude

• Attraction

• Attractor

• Attrition

AU

• Audit Coupon

• Auditing

• Auditorium Style

• Australasia

• Authentication

• Autobahn

• Autoferro

• Automated Ticket

• Automated Ticket Or Boarding Pass

• Automatic Form Number Reader

• Autopilot

• Auxiliary Power Unit

AV

• Availability

• Available Seat Mile

• Avalanche

• Average Coach Airfare

• Average Daily Rate

• Average House Rate

• Average Published Rate

• Average Rate

• Aviation

• AVIH

• AVML

• AVOD

• AVS

AW

• AWB