Is Department of major grammatically correct?

Here's why:

* "Major" needs a noun after it. You need to specify what the major is. For example: "Department of English," "Department of Computer Science," or "Department of History."

Here are some correct ways to use the phrase:

* "Department of [subject] major": This refers to a specific major within a department, like "Department of English major."

* "Department for majors": This refers to a department that houses multiple majors.

* "Department of [subject]": This refers to a department focused on a specific subject, like "Department of History."

Let me know if you have any other phrases you'd like to check!