nullify
Explore definitions, synonyms, and language insights of nullify
Definitions
                    Verb
                    
                declare invalid; "The contract was annulled"; "void a plea"
                
                    Verb
                    
                show to be invalid
                
                    Verb
                    
            make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"