[verb] oppose or check by a counteraction Synonyms:countercheck
[verb] oppose and mitigate the effects of by contrary actions; "This will counteract the foolish actions of my colleagues" Synonyms:countervail, neutralize, counterbalance
[verb] destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war" Synonyms:sabotage, undermine, countermine, subvert, weaken
