flak

noun
1
guns on the ground that are shooting at enemy aircraft; bullets from these guns
پدافند هوایی, گلوله‌های پدافند هوایی, آتش ضدهوایی
2
severe criticism
انتقاد شدید, سرزنش
He's taken a lot of flak for his political views.
She came in for a lot of flak from the press.