Countermine - Definition
countermine
n 1: (military) a tunnel dug to defeat similar activities by the
enemy
v 1: destroy property or hinder normal operations; "The
Resistance sabotaged railroad operations during the war"
[syn: sabotage, undermine, countermine, counteract,
subvert, weaken]
2: destroy enemy mines with one's own mines; "We countermined
the banks of the river"