military A tunnel dug to defeat similar activities by the enemy.

Destroy property or hinder normal operations.

synonyms: counteract, sabotage, subvert, undermine, weaken.

Roget 708: oppose, counteract, run counter to; withstand etc. (resist) 719; control etc. (restrain) 751; hinder etc. 706; antagonize, oppugn, fly in the face of, go dead against, kick against, fall afoul of, run afoul of; set against, pit against; face, confront, cope with; make a stand, make a dead set against; set oneself against, set one's face against; protest against, vote against, raise one's voice against; disfavor, turn one's back upon; set at naught, slap in the face, slam the door in one's face.    be at cross purposes; play at cross purposes; counterwork^†, countermine; thwart, overthwart^†; work against, undermine.    stem, breast, encounter; stem the tide, breast the tide, stem the current, stem the flood; buffet the waves; beat up against, make head against; grapple with; kick against the pricks etc. (resist) 719; contend etc. 720; do battle with etc. (warfare) 722, do battle against.    contradict, contravene; belie; go against, run against, beat against, militate against; come in conflict with.    emulate etc. (compete) 720; rival, spoil one's trade.    ... show more

Destroy enemy mines with one's own mines.