знати, розуміти

Приклади використання слова «know»:

It’s my business to know who leaves by train.
Upon which, turning to me,And thou, said he, dost thou hot know her?
I don't know why a man did that.
What could two poorprisoners know of the whereabouts of their noble jailer?
If any policy could better serve the purposes of France, I know it not.