(v) make ineffective by counterbalancing the effect of, Syn. negate, neutralise, nullify, Example:Her optimism neutralizes his gloom; This action will negate the effect of my efforts
(v) get rid of (someone who may be a threat) by killing, Syn. neutralise, waste, do in, liquidate, knock off, Example:The mafia liquidated the informer; the double agent was neutralized