Any of the stones making up the top layer of a wall; a coping stone.
A crowning achievement, culmination or finishing touch.
The top stone of an arch.
Something on which other things depend for support.
A native or resident of the American state of Pennsylvania.
A retail price that is double the cost price; a markup of 100%.
To distort (an image) by projecting it onto a surface at an angle, which for example causes a square to look like a trapezoid.
To double the cost price in order to determine the retail price; to apply a markup of 100%.