know of
US /noʊ ʌv/
UK /noʊ ʌv/

1.
weten van, kennen
to be aware of someone or something, often without having detailed knowledge
:
•
Do you know of any good restaurants nearby?
Weet u goede restaurants in de buurt?
•
I only know of him by reputation, I've never met him.
Ik ken hem alleen van naam, ik heb hem nog nooit ontmoet.