Categories

The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• Ainu Culture‏‎ (1 member)
• Ainu culture‏‎ (1 member)
• Air Combat Command units‏‎ (2 members)
• Air Force Academies‏‎ (1 member)
• Air Pollution‏‎ (12 members)
• Air Pollution Control‏‎ (7 members)
• Air Quality‏‎ (7 members)
• Air Quality Monitoring‏‎ (1 member)
• Air Racing‏‎ (1 member)
• Air Sports‏‎ (1 member)
• Air Traffic Control‏‎ (2 members)
• Air force academies‏‎ (1 member)
• Air force wings‏‎ (1 member)
• Air forces‏‎ (1 member)
• Air forces by country‏‎ (1 member)
• Air pollution‏‎ (8 members)
• Air pollution control districts in California‏‎ (1 member)
• Air shows‏‎ (1 member)
• Air warfare‏‎ (1 member)
• Airborne activities‏‎ (1 member)
• Airborne early warning and control aircraft‏‎ (2 members)
• Airbus‏‎ (1 member)
• Aircraft‏‎ (6 members)
• Aircraft Carrier Technology‏‎ (1 member)
• Aircraft Carriers‏‎ (2 members)
• Aircraft Design‏‎ (2 members)
• Aircraft Engines‏‎ (1 member)
• Aircraft Systems‏‎ (1 member)
• Aircraft carriers‏‎ (5 members)
• Aircraft carriers of China‏‎ (1 member)
• Aircraft carriers of the United States‏‎ (4 members)
• Aircraft carriers of the United States Navy‏‎ (4 members)
• Aircraft components‏‎ (1 member)
• Aircraft engines‏‎ (4 members)
• Aircraft first flown in 1935‏‎ (1 member)
• Airfields‏‎ (1 member)
• Airlines disestablished in 2012‏‎ (1 member)
• Airlines established in 1934‏‎ (1 member)
• Airlines of the United States‏‎ (1 member)
• Airports established in 1920‏‎ (1 member)
• Airports established in 1927‏‎ (2 members)
• Airports established in the 1940s‏‎ (1 member)
• Airports in Afghanistan‏‎ (1 member)
• Airports in Arizona‏‎ (1 member)
• Airports in California‏‎ (3 members)
• Airports in Delaware‏‎ (1 member)
• Airports in Hawaii‏‎ (2 members)
• Airports in Idaho‏‎ (1 member)
• Airports in Illinois‏‎ (1 member)
• Airports in Japan‏‎ (1 member)