torpedo

torpedo Hide phonetics
noun [C or U] plural torpedoes
a long thin bomb which travels under water in order to destroy the ship at which it is aimed

torpedo Hide phonetics
verb [T] torpedoing, torpedoed, torpedoed
1 to use a torpedo to destroy something

2 INFORMAL to destroy:━━ vt. 水雷（など）で破壊する; 挫折(ざせつ)させる.
He accused them of trying to torpedo the peace process.

Google Works to Torpedo Microsoft Bid for Yahoo
By ANDREW ROSS SORKIN and MIGUEL HELFT
Google is making an unusually aggressive effort to block Microsoft’s $44.6 billion hostile bid for Yahoo.


(from Cambridge Advanced Learner's Dictionary)