verb Download 🔗Share To dig underneath (something), to make a passage for destructive or military purposes; to sap. Examples : "The secret passage undermined the foundation of the old house, making it unstable. " military building geology war action Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To weaken or work against; to hinder, sabotage. Examples : "The war efforts were undermined by the constant bickering between the allies." action business politics government Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To erode the base or foundation of something, e.g. by the action of water. Examples : "Heavy rainfall undermined the foundation of the old house, causing cracks to appear in the walls. " geology environment structure building Chat with AIVocabulary GamePractice Reading