Definition of countermine in English:

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countermine

Pronunciation: /ˈkaʊntəmʌɪn/

noun

Military
An excavation dug to intercept another dug by an enemy.
Example sentences
  • A countermine was successful when an enemy tunnel was intercepted.
  • A mine dug through the solid rock below the castle was intercepted by a countermine, bringing the mining to an end.
  • Here, the engineer is Hamlet, who is going to place some explosives in a countermine, one yard underneath that of his ‘excellent good friends’.

verb

[with object]
Dig a countermine against: (as noun countermining) countermining would be impossible given their shortage of gun powder
More example sentences
  • Mining operations and countermining operations have been part of America's wars since World War II.
  • Another 20 unknown contacts were countermined in harbours as the team responded to USN unmanned vehicle or marine mammal searches.
  • By countermining at these points, the Barcaeans broke into the enemy's works and slew the men they found there.

For editors and proofreaders

Line breaks: coun¦ter|mine

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