one of two airlines used in the 9/11/01 attack. Flights 11 and 77 belonged to American Airlines.

American Airlines (AA) is the largest airline in the world in terms of total passengers-miles transported [Aviation Week and Space Technology, January 15, 2007, p. 349], and fleet size, and the second-largest airline in the world (behind Air France-KLM) in terms of total operating revenues. A wholly owned subsidiary of the AMR Corporation, the airline is headquartered in Fort Worth, Texas, adjacent to the Dallas/Fort Worth International Airport. American operates scheduled flights throughout the United States, as well as flights to Canada, Latin America, the Caribbean, Western Europe, Japan, China, and India.

Two Aces.

The name of a pair of Aces in the pocket.

A pair of Aces in the hole.