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English definition of “flak”

flak

noun [U] uk (also flack)   /flæk/ us  

flak noun [U] (CRITICISM)

informal strong criticism or opposition: She took/caught some flak from her parents about her new dress.Disapproving and criticizingDamaging reputation

flak noun [U] (FIRING OF GUNS)

the firing of guns from the ground at enemy aircraft, or the bullets, etc. that the guns fire: They flew into heavy flak over the target area.Detonation and bombardment
(Definition of flak from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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