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noun
Meanings
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1
noun
anti-aircraft fire, or strong criticism
The proposal drew heavy flak from the public.
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Etymology
From German Flak, an acronym of Fliegerabwehrkanone ('aircraft-defense gun'), from Flieger ('flyer') + Abwehr ('defense') + Kanone ('cannon'). The figurative sense 'strong criticism' arose in mid-20th-century English.
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