Salvo n. : An exception; a reservation; an excuse.

Salvo n. : A concentrated fire from pieces of artillery, as in endeavoring to make a break in a fortification; a volley.

Salvo n. : A salute paid by a simultaneous, or nearly simultaneous, firing of a number of cannon.

Example:


Taxonomy
fire, firing solution, free encyclopedia, heavy guns, ranks, troops, broadside, discharge, the enemy, lining, target ship, rain of fire, reloaded, the fall, one shot, battleship, fire control, search.

Defination from the web:
salvo is the simultaneous discharge of artillery or firearms including the firing of guns either to hit a target or to perform a salute. ... The "spread" of the salvo would have one shot fire "over" the estimated range, one shot "under," and two on the estimated range. ...