[noun koun-ter-mahyn; verb koun-ter-mahyn, koun-ter-mahyn]
See more synonyms for countermine on
verb (used with object), coun·ter·mined, coun·ter·min·ing.
  1. to oppose by a countermine.
verb (used without object), coun·ter·mined, coun·ter·min·ing.
  1. to make a countermine.
  2. Military. to intercept or destroy enemy mines.

Origin of countermine

late Middle English word dating back to 1425–75; see origin at counter-, mine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for countermine

Historical Examples of countermine

British Dictionary definitions for countermine


noun (ˈkaʊntəˌmaɪn)
  1. military a tunnel dug to defeat similar activities by an enemy
  2. a plot to frustrate another plot
verb (ˌkaʊntəˈmaɪn)
  1. to frustrate by countermeasures
  2. military to take measures to defeat the underground operations of (an enemy)
  3. military to destroy enemy mines in (an area) with mines of one's own
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012