The meaning of the Acronym AC is...

AC is

• Asphalt Concrete
• Alcohol Concentration
• Airframe Change
• Aircraft Commander
• Aircraft
• Air Controller
• Advisory Circular
• Air Cooled
• All Conditions
• Auto Carrier
• Air Conditioner
• Atlantic Crossing
• Air Cooling
• Accommodations Code

More Meanings For AC:

• Applied Communications
• Alternating Current
• Ascendant Cusp
• Active Coronae
• Actinium
• Active Count
• 'A' Complement
• Added Constraint
• Academic Community
• Advanced Credit
• Assumption College
• Autonomous Control
• Automatic Control
• American Coast
• Axiom of Choice

AC is also in:

• Academic Degrees
• Architecture
• Astronomy
• Chemistry
• Electronics
• Geology
• Mathematics
• Universities