ETYM French, from barrer to bar, from barre bar.
The rapid and continuous delivery of linguistic communication (spoken or written); SYN. outpouring, onslaught.

In warfare, a linear concentration of artillery fire used to interpose a screen of bursting shells between attacking and defending troops.
When fired by a defending force to prevent an attack reaching its lines, a barrage may be a simple line of fire in front of a position or shaped so as to surround the position—a “box” barrage. Fired to assist an attack, a barrage may be stationary, to prevent reinforcements reaching the threatened area, or moving, to act as a continuous screen ahead of the advancing force. Normally using high explosive shells, in World War I barrages often included gas and shrapnel projectiles so as to present a more complex threat to the target.
The heavy fire of artillery to saturate an area rather than hit a specific target; SYN. barrage fire, battery, bombardment, shelling.

To attack with a barrage.