the act of firing several guns or dropping several bombs, etc. at the same time; a sudden attack 齊射;齊投;奇襲 The first salvo exploded a short distance away. 第一批投下的炸彈在不遠處爆炸。 - (figurative)
The newspaper article was the opening salvo in what proved to be a long battle. 報上那篇文章是一場長期論戰的開篇第一炮。
Word Originlate 16th cent. (earlier as salve): from French salve, Italian salva ‘salutation’.