countermine

v., -mined, -min·ing, -mines.

v.tr.

1. To frustrate or defeat by secret and opposite measures.
2. To make or use a countermine against.

v.intr.
To make or lay down countermines.

n. (koun'tər-mīn')

1. A tunnel dug to intercept and destroy an enemy's mine.
2. A plot to frustrate or defeat an attack.

n. an excavation dug to intercept another dug by an enemy.

v.

dig a countermine against.

See the Introduction, Abbreviations and Pronunciation for further details.

(DOD, NATO) To explode the main charge in a mine by the shock of a nearby explosion of another mine or independent explosive charge. The explosion of the main charge may be caused either by sympathetic detonation or through the explosive train and/or firing mechanism of the mine.

Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: (military) a tunnel dug to defeat similar activities by the enemy

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The verb countermine has 2 meanings:

Meaning #1: destroy property or hinder normal operations
  Synonyms: sabotage, undermine, counteract, subvert, weaken

Meaning #2: destroy enemy mines with one's own mines

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