Sentence examples for a geek from inspiring English sources

The phrase "a geek" is correct and usable in written English.
It can be used to describe someone who is very knowledgeable or enthusiastic about a particular subject, often related to technology or pop culture.
Example: "As a self-proclaimed geek, I love discussing the latest advancements in technology and science fiction movies."
Alternatives: "a nerd" or "a tech enthusiast".