Verb
- 1. sabotage, undermine, countermine, counteract, subvert, weaken, disobey
- usage: destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war"
- 2. cave, undermine, hollow, hollow out, core out
- usage: hollow out as if making a cave or opening; "The river was caving the banks"
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All rights reserved.Definition and meaning of undermine (Dictionary)