He is known as a person with learning.

I am majoring in anthropology at university.

He is a renowned anthropologist, traveling around the world to study human cultures.

He has expert knowledge.

He is studying computer science at a specialized school.

He is a specialist fool, with no interest in anything outside his field.

He couldn't say anything about issues outside of his field of expertise.

There are many different specialty stores in this town.

My house is near the mountains.

This is my grandparents' house.