What is correct grammar re assign or reassign?

Both "assign" and "reassign" are correct, but they have different meanings:

* Assign: To give someone a particular task or responsibility.

* Reassign: To assign something (a task, responsibility, or person) to a different person or place.

Examples:

* Assign: "The teacher assigned each student a different project."

* Reassign: "After the merger, several employees were reassigned to different departments."

Choosing the right word:

Consider whether you are giving someone a new task for the first time ("assign") or changing an existing assignment ("reassign").