Ie, ie or IE may refer to: for example, abbreviation for Latin id est, meaning "that's; in other words" Computing Information Engineering Internet Explorer, the web browser by Microsoft IntelliMouse Explorer, a line of computer mice designed by Microsoft Infinity Engine, the game engine behind Baldur's Gate among others .ie Irish top level CCtld Education Institut Eksekutif, an educational institution in Sarawak, Malaysia IE Business School, formerly known as Instituto de Empresa, a g… (More on Ie)