Synonym of the word UNDERMINE

v. To dig underneath (something), to make a passage or for destructive or military purposes; to sap.
v. (figuratively) To weaken or work against; to hinder, sabotage.

n. A large, naturally-occurring cavity formed underground, or in the face of a cliff or a hillside.
n. A hole, depression, or gap in earth or rock, whether natural or man-made.
n. A storage cellar, especially for wine or cheese.
n. A place of retreat, such as a man cave.
n. (caving) A naturally-occurring cavity in bedrock which is large enough to be entered by an adult.
n. (nuclear physics) A shielded area where nuclear experiments can be carried out.
n. (drilling, uncountable) Debris, particularly broken rock, which falls into a drill hole and interferes…
n. (mining) A collapse or cave-in.
n. (figuratively, also slang) The vagina.
n. (slang, politics, often "Cave") A group that breaks from a larger political party or faction on a particular…
n. (obsolete) Any hollow place, or part; a cavity.
v. To surrender.
v. To collapse.
v. To hollow out or undermine.
v. To engage in the recreational exploration of caves; to spelunk.
v. (mining) In room-and-pillar mining, to extract a deposit of rock by breaking down a pillar which had been…
v. (mining, obsolete) To work over tailings to dress small pieces of marketable ore.
v. (obsolete) To dwell in a cave.
interj. (Britain, school slang) look out!; beware!

n. A mine used by defenders to intercept an enemy mine or tunnel.
n. An underground gallery excavated to intercept and destroy the mining of an enemy.
n. A stratagem or plot by which another stratagem or project is defeated.
v. To plot opposition; to frustrate the initiatives of another.

v. (transitive) To refuse or (intentionally) fail to obey an order of (somebody).
v. (intransitive) To refuse or (intentionally) fail to obey.

n. A small valley between mountains.
n. A sunken area or unfilled space in something solid; a cavity, natural or artificial.
n. (US) A sunken area.
n. (figuratively) A feeling of emptiness.
v. (transitive) to make a hole in something; to excavate.
adj. (of something solid) Having an empty space or cavity inside.
adj. (of a sound) Distant, eerie; echoing, reverberating, as if in a hollow space; dull, muffled; often low-pitched.
adj. (figuratively) Without substance; having no real or significant worth; meaningless.
adj. (figuratively) Insincere, devoid of validity; specious.
adj. concave; gaunt; sunken.
adj. (gymnastics) pertaining to hollow body position.
adv. (colloquial) Completely, as part of the phrase beat hollow or beat all hollow.
v. To urge or call by shouting; to hollo.
interj. Alternative form of hollo.

n. A deliberate action aimed at weakening an enemy through subversion, obstruction, disruption, and/or destruction.
n. (military) An act or acts with intent to injure, interfere with, or obstruct the national defense of a…
v. to deliberately destroy or damage something in order to prevent it from being successful.

v. (transitive) To overturn from the foundation; to overthrow; to ruin utterly.
v. (transitive) To pervert, as the mind, and turn it from the truth; to corrupt; to confound.
v. (transitive) To upturn convention from the foundation by undermining it (literally, to turn from beneath).
n. An advertisement created by subvertising.

Synonyms of the word