Open English Wordnet
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Verbs
(v)
invalidate
,
annul
,
quash
,
void
,
avoid
,
nullify
declare invalid
“The contract was annulled”
,
“void a plea”
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(v)
invalidate
,
nullify
show to be invalid
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(v)
neutralize
,
neutralise
,
nullify
,
negate
make ineffective by counterbalancing the effect of
“Her optimism neutralizes his gloom”
,
“This action will negate the effect of my efforts”
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