nerd
nounUK /nɜːd/
US /nɝːd/
A person who loves learning and knows a lot about one topic.
My cousin is a computer nerd who can fix any laptop.
RELATED WORDS
OTHER MEANINGS
2. Someone who is very excited about a hobby, like games or science.
She is a science nerd who reads space books every night.
3. A person who is smart but sometimes seen as awkward or shy.
The nerd in class always has the answers.
4. A person who knows a lot about computers and technology.
He is a tech nerd who builds his own robots.