undermine as in destroy property or hinder normal operations

• "The Resistance sabotaged railroad operations during the war"

Synonyms

• sabotagedestroy property or hinder normal operations; a deliberate act of destruction or disruption in which equipment is damaged
• countermine(military) a tunnel dug to defeat similar activities by the enemy ; destroy property or hinder normal operations; destroy enemy mines with one's own mines
• counteractact in opposition to ; oppose or check by a counteraction ; oppose and mitigate the effects of by contrary actions; destroy property or hinder normal operations
• subvertcause the downfall of; corrupt morally or by intemperance or sensuality; destroy property or hinder normal operations; destroy completely
• weakenlessen the strength of; become weaker; destroy property or hinder normal operations; reduce the level or intensity or size or scope of; lessen in force or effect

undermine as in hollow out as if making a cave or opening

• "The river was caving the banks"

Synonyms

• cavehollow out as if making a cave or opening; explore natural caves ; a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea