Meaning

3 senses
  1. A mine used by defenders to intercept an enemy mine or tunnel.

    (military) a tunnel dug to defeat similar activities by the enemy

  2. An underground gallery excavated to intercept and destroy the mining of an enemy.

  3. A stratagem or plot by which another stratagem or project is defeated.

Origin

From counter- + mine.

From counter- + mine.

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countermine — meaning, examples, forms, synonyms | Krumeto