(colloquial) A person who is intensely interested in a particular field or hobby and often having limited or nonstandard social skills. Often used with an attributive noun.

I was a complete computer geek in high school, but I get out a lot more now.

Google翻訳 / DeepL翻訳

詳細

意味（3）

(colloquial, by extension) An expert in a technical field, particularly one having to do with computers.

My laptop’s locked up again. I need a geek.

Google翻訳 / DeepL翻訳

詳細

意味（4）

(uncountable, colloquial) The subculture of geeks; an esoteric subject of interest that is marginal to the social mainstream; the philosophy, events, and physical artifacts of geeks; geekness.

It is totally counter-intuitive. How do these ubernerds get the cute girls? Is it the ultimate triumph of the Bill Gates era, in which geek is the new cool?

Google翻訳 / DeepL翻訳