With a roar of rage, Morfin leapt out of his chair and ran at Ogden, brandishing his bloody knife and firing hexes indiscriminately from his wand.
Harry thought Ogden was being extremely dim; the stranger was making himself very clear in Harry’s opinion, particularly as he was brandishing a wand in one hand and a short and rather bloody knife in the other.
"Harry’s already Apparated," Ron told a slightly abashed Seamus, after Professor Flitwick had dried himself off with a wave of his wand and set Seamus lines: "I am a wizard, not a baboon brandishing a stick."
"We won!" yelled Ron, bounding into sight and brandishing the silver Cup at Harry.
It was almost unbearable to turn away from the mass of students streaming out into the sunshine, all of them wearing rosettes and hats and brandishing banners and scarves, to descend the stone steps into the dungeons and walk until the distant sounds of the crowd were quite obliterated, knowing that he would not be able to hear a word of commentary or a cheer or groan.
There is no way they’d let me be a Death Eater!" said Ron indignantly, a bit of sausage flying off the fork he was now brandishing at Hermione and hitting Ernie Macmillan on the head.
Morfin was working himself into a rage again; he brandished his knife and shouted, "Dishonored us, , she did, that little slut!
There are no more uses of "brandish" in the book.
Show samples from other sources
She brandished a sword.
She tossed her new weapon up in the air, caught it again, brandished it, and urged the horse forward.