SABOTAGE

[verb] [T] - to prevent the success of an enemy or competitor by damaging or destroying (their buildings, weapons or equipment), or to intentionally prevent the success of (a plan or action)The rebels had tried to sabotage the oil pipeline.Terrorists have attempted to sabotage the nuclear power station.This was a deliberate attempt to sabotage (= prevent the success of) the ceasefire.The rain effectively sabotaged (= prevented the success of) their efforts to win the match.By telling them I'd been in prison, he sabotaged (= prevented the success of) my chances of getting the job.