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negate
verb
Definition of
negate verb
from the Oxford Advanced Learner's Dictionary
negate
verb
nɪˈɡeɪt
nɪˈɡeɪt
(
formal
)
1
negate something
to stop something from having any effect
Synonym
nullify
Alcohol negates the effects of the drug.
2
negate something
to state that something does not exist