verb
noun
Meanings
-
1
verb
to thwart an enemy's mine by digging a counter-tunnel; to counter a hostile scheme
The defenders worked through the night to countermine the besiegers' tunnel.
Thesaurus
Etymology
From 'counter-' ('against') plus 'mine' (a tunnel dug under fortifications). 'Mine' is from Old French 'mine', of Celtic origin.
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