know of someone or something means to be aware of the existence of someone or something; to have information about someone or something.
Examples:
I think I know of someone who can help you.
I didn't know of Wally's arrival.
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).
Example:
- Is he home yet?
- Not that I know of.
Examples:
I think I know of someone who can help you.
I didn't know of Wally's arrival.
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).
Example:
- Is he home yet?
- Not that I know of.