to be one's department
01
to be responsible for something, showing a sense of authority in that area
Exempel
Strategic planning is Laura's department, and she plays a pivotal role in shaping the company's long-term vision and goals.
02
to know a lot about something, indicating a sense of expertise in the matter
Exempel
When it comes to computer programming, it's definitely Mark's department; he's our go-to expert for coding challenges.
