Englishfor English speakers
assure
Verb
—
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.
—
If mathx/math assures that mathy/math happens, mathx/math makes it certain that mathy/math happens.
You need to begin now to assure that the everything is ready in January.
oneself
pronoun
—
A person's self: general form of himself, herself or yourself.