"Flak" Natural Recordings by Native Speakers
Flak refers to anti-aircraft fire or a barrage of gunfire aimed at shooting down aircraft. It can also be used figuratively to describe a harsh criticism or intense criticism that is reminiscent of a barrage of gunfire. For example, "The journalist received a lot of flak from the public for his negative review of the new movie."
Examples of "flak"
Flagstones are flat stones, typically made of slate, granite, or sandstone, used as paving material, often laid together to form a surface, such as a floor or path, indoors or outdoors.