| Countermine 1. (n.) An underground gallery excavated to intercept and destroy the mining of an enemy. 2. (n.) A stratagem or plot by which another stratagem or project is defeated. 3. (v. t.) To oppose by means of a countermine; to intercept with a countermine. 4. (v. t.) To frustrate or counteract by secret measures. 5. (v. i.) To make a countermine or counterplot; to plot secretly. Thesaurus Entries abri, angle, approach trench, brew, bunker, cabal, collude, communication trench, complot, concoct, connive, conspire, cook up, counterplot, coupure, ditch, double sap, dugout, engineer, entrenchment, finagle, finesse, fire trench, flying sap, fortified tunnel, fosse, foxhole, frame, frame up, gallery, hatch, hatch a plot, hatch up, intrigue, lay a plot, machinate, maneuver, mine, moat, operate, parallel, plot, rig, sap, scheme, slit trench, trench, tunnel, wangle |