1. A gallery running underground in search of the enemy's mine, or till it meets it, to defeat its effect; a stratagem or project to frustrate any contrivance.

2. To oppose by a countermine; to counterwork.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• xountermine,
• vountermine,
• fountermine,
• dountermine,
• ciuntermine,
• ckuntermine,
• cluntermine,
• cpuntermine,
• c0untermine,
• c9untermine,
• coyntermine,
• cohntermine,
• cojntermine,
• cointermine,
• contermine,
• conutermine,
• countremine,
• countermein,
• conturmine,
• contermaine

• counteroffer,
• counterculture,
• countersink,
• countercurrent,
• countervail,
• countermove,
• counterblast,
• counterfeit,
• countercharge,
• counterglow,
• counterexample,
• counterweight,
• counterfire,
• counterfeiter,
• countervailing,
• counterblow,
• counterbalance,
• counterbore,
• counter check,
• counterplay,
• counterplot,
• counterclaim,
• counterstain,
• countersuit,
• countermarch,
• counterpose,
• counterpart,
• countersign,
• counterpane,
• countermand,
• commuter,
• countryman,
• counterspy,
• counterpoised,
• counterfoil,
• counterman,
• countercoup,
• counterpoise,
• countershot,
• countermelody,
• Conteras,
• countertop,
• counteract,
• counter-drill,
• Contreras,
• counter tube,
• counterwoman,
• counteractive,
• counterperson,
• counterplan,
• contrite,
• counteraction,
• counterpoint,
• counterpoison,
• conterminous,
• countercheck,
• counterpunch,
• countertenor,
• counterplea,
• counterstrike,
• counterchange,
• countermeasure,
• counterattack.

The adverb form of "countermine" is "countermineingly".

The adjective form of the word "countermine" is "countermine".

The plural of the "countermine" can be the "countermines".

The singular of the "countermine" can be the "countermine".