NULLIFY


Meaning of NULLIFY in English

/ ˈnʌlɪfaɪ; NAmE / verb ( nul·li·fies , nul·li·fy·ing , nul·li·fied , nul·li·fied ) [ vn ] ( formal )

1.

to make sth such as an agreement or order lose its legal force

SYN invalidate :

Judges were unwilling to nullify government decisions.

2.

to make sth lose its effect or power

SYN negate :

An unhealthy diet will nullify the effects of training.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.