Definition:
- (n.) An underground gallery excavated to intercept and destroy the mining of an enemy.
- (n.) A stratagem or plot by which another sratagem or project is defeated.
- (v. t.) To oppose by means of a countermine; to intercept with a countermine.
- (v. t.) To frustrate or counteract by secret measures.
- (v. i.) To make a countermine or counterplot; to plot secretly.