by KatyBr ?? Sun Oct 16, 2005 6:29 pm pie1 (p??) n.A baked food composed of a pastry shell filled with fruit, meat, cheese, or other ingredients, and usually covered with a pastry crust.A layer cake having cream, custard, or jelly filling.A whole that can be shared: ???That would . . . enlarge the economic pie by making the most productive use of every investment dollar??? (New York Times).idiom:p