barrage

Concise Oxford English Dictionary © 2008 Oxford University Press:
barrage /ˈbarɑːʒ/

▶noun

• 1 a concentrated artillery bombardment over a wide area.

• 2 an overwhelming number of questions or complaints delivered in rapid succession.

• 3 an artificial barrier across a river, to prevent flooding or to aid irrigation or navigation.

▶verb bombard with questions or complaints.

– origin C19: from Fr., from barrer ‘to bar’.