MAKE CERTAIN OF STH / OF DOING STH


Meaning of MAKE CERTAIN OF STH / OF DOING STH in English

to do sth in order to be sure that sth else will happen :

You'll have to leave soon to make certain of getting there on time.

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