salvo
noun
[ ˈsalvəʊ ]
• a simultaneous discharge of artillery or other guns in a battle.
• "a deafening salvo of shots rang out"
Origin:
late 16th century (earlier as salve ): from French salve, Italian salva ‘salutation’.
Salvo
noun
• a member of the Salvation Army.
Origin:
late 19th century: abbreviation of salvation.