Noun hacker has 4 senses

• hacker(n = noun.person) Array - someone who plays golf poorly; Array
is a kind of golf player, golfer, linksman

• hacker(n = noun.person) 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; Array
is a kind of coder, computer programmer, programmer, software engineer, terrorist

• hacker(n = noun.person) Array - 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"
is a kind of coder, computer programmer, programmer, software engineer
Derived form verb hack₆

• hacker(n = noun.person) drudge, hack - one who works hard at boring tasks; Array
is a kind of unskilled person
has particulars: plodder, slogger