#1 hacker n. someone who plays golf poorly. wn
#2 hacker n. [cyber-terrorist, cyberpunk] a programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorism. wn
#3 hacker n. a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm; "true hackers subscribe to a code of ethics and look down upon crackers". wn
#4 hacker n. [hack, drudge] one who works hard at boring tasks. wn
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