Something on which other things depend for support.
A retail price that is double the cost price; a markup of 100%.
A native or resident of the American state of Pennsylvania.
The combination of the shortstop and second baseman.
The top stone of an arch.
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%.
Someone or something that can be depended on to make a regular contribution.
A stabilising rope from the top of the mainmast to the bottom of the foremast.
A chief support.