flak

noun

Explosive shells fired from anti-aircraft guns at enemy aircraft.

"The bomber flew through heavy flak."

noun

Strong criticism or opposition, often from many people.

"He received a lot of flak for his decision."

Thesaurus

Synonyms: antiaircraft gun, flack, pom-pom, antiaircraft, ack-ack, ack-ack gun, attack, fire, blast, flak catcher, flack catcher