Ron lay back down on the bed, which he had evidently just vacated.
And that was the simple truth of it, Harry knew, because their protective enchantments meant that it would be impossible, once they vacated this spot, for Ron to find them again.
Faces appeared at the windows on either side of the street, while a little knot of prosperous-looking passerby gathered their robes about them and broke into gentle trots, keen to vacate the scene.
There are no more uses of "vacate" in the book.
Show samples from other sources
Thus Willow Marks's early procedure, and the graffiti scrawled on her house; thus the fact that Chelsea Bronson was kicked out of school after allegedly being found breaking curfew with a boy from Spencer, and her parents were mysteriously fired, and her whole family was forced to vacate their house.
Lauren Oliver -- Delirium
The cot had been vacated and I moved shakily toward it, trying not to sneeze or breathe as I squeezed past my cellmates.