assure

Assure is part of the Academic Word List. It is important for students in college and university.

Verb [change]

Plain form
assure

Third-person singular
assures

Past tense
assured

Past participle
assured

Present participle
assuring

(transitive) If you assure somebody about something, you tell them not to worry because the thing you say is true.

The doctor assured me that he would be OK.

He certainly won't be boring; I can assure you of that.
(transitive) If $x$ assures that $y$ happens, $x$ makes it certain that $y$ happens.

You need to begin now to assure that the everything is ready in January.