What is the difference between vacant?

It seems like your question got cut off. If you meant to ask about the difference between "vacant" and another term, please specify the other term. Generally, "vacant" refers to a space that is unoccupied or empty, such as a vacant lot or apartment. If comparing it to "occupied," the latter indicates that a space is currently being used or filled. Please clarify if you meant to compare "vacant" with something specific!