countermine

Noun
  1. (military) a tunnel dug to defeat similar activities by the enemy (synset 101079114)
Verb
  1. Destroy property or hinder normal operations (synset 202549304)
    "The Resistance sabotaged railroad operations during the war"
  2. Destroy enemy mines with one's own mines (synset 201128308)
    "We countermined the banks of the river"

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