know of (someone/something)

to have information about someone or something.

Do you know of a way to remove this stain?

We've never met, but I certainly know of him.

Usage notes: also used in the spoken phrase not that I know of - I do not know:

“Is he home yet?” “Not that I know of.”

• throw upon someone's mercy
• throw up something
• throw up your hands
• throw weight around
• throw your hat in the ring
• throw your money around
• throw yourself into
• throw yourself into something
• throw yourself on mercy
• throw yourself on someone's mercy
• throw yourself upon mercy
• throw yourself upon someone's mercy
• throw your weight around
• throw your weight behind
• throw your weight behind someone
• throw your weight behind something
• thumb nose at
• thumb nose at someone
• thumb nose at something
• thumbs down
• thumbs down someone
• thumbs down something
• thumbs up
• thumbs up someone
• thumbs up something