American Dictionary

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Definition hacker in American English

hacker noun

[countable] noun
/ˈhækər/
1

someone who uses a computer to connect to other people's computers secretly and often illegally, so that they can find or change information

Synonyms and related words
1.1

someone who knows a lot about computers and who spends a lot of time using them

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2

someone who enjoys playing a sport but is not very good at it

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3

someone who listens illegally to the calls or messages on another person's phone, especially by accessing the voicemail without their knowledge or consent

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4

a clever computer programmer or user

Example

The hacker mind-set is not confined to this software-hacker culture.

Definition hacker in American English