keep out
US /kiːp aʊt/
UK /kiːp aʊt/

1.
to prevent someone or something from entering a place
:
•
The sign said 'Danger! Keep out!'
•
We need to keep the dog out of the kitchen.
2.
to prevent someone from knowing about something
:
•
They tried to keep the news out of the papers.
•
She always tries to keep me out of her personal life.