He is always finding fault with me.

He loves spot the difference puzzles.

He set out on a journey of soul-searching.

He is studying computer science at a specialized school.

There are many different specialty stores in this town.

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.

He has expert knowledge.

He lost everything.

She is planning a date with her current boyfriend.