What is the meaning of Keystone?
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%.
The combination of the shortstop and second baseman.
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%.
Source: wiktionary.orgSearch words containing