scholar
US /ˈskɑː.lɚ/
UK /ˈskɑː.lɚ/

1.
a person who studies a great deal and has a lot of knowledge about a particular subject
:
•
She is a renowned scholar of ancient history.
•
He dedicated his life to being a biblical scholar.
a person who studies a great deal and has a lot of knowledge about a particular subject