1. <unit, text> (Sometimes abbreviated "pt") The unit of length for text characters. There are six slightly different definitions: Truchet point, Didot point, ATA point, TeX point, Postscript point, and IN point.
The most commonly used are ATA in the USA and Didot in Europe.
A twip is 1/20 of a PostScript[?] point.
2. <hardware> To move a pointing device so that the on-screen pointer is positioned over a certain object on the screen such as a button in a graphical user interface. In most window systems it is then necessary to click a (physical) button on the pointing device to activate or select the object. In some systems, just pointing to an object is known as "mouse-over" event which may cause some help text (called a "tool tip" in Windows) to be displayed.