Definition of Undermine
Undermine
un·der·mine
Definition/Meaning
(verb)
To weaken or damage something, such as a person's confidence or a system.
e.g. The company's decision to downsize will undermine employee morale.
(verb)
to erode the supporting material from underneath something, especially to wash away the foundation of a landform or structure;
e.g. The subterranean rivers undermine the walls of the cave and might cause them to collapse.
(verb)
to dig or mine beneath something, especially a building or structure, in order to make it collapse;
e.g. The army began to undermine the enemy's fort wall so that they could invade it more easily.
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