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