Main Entry: hack·er

Pronunciation: \ˈha-kər\

Function: noun

Date: 14th century

1 : one that hacks
2 : a person who is inexperienced or unskilled at a particular activity <a tennis hacker>
3 : an expert at programming and solving problems with a computer
4 : a person who illegally gains access to and sometimes tampers with information in a computer system