to prevent somebody/something from entering a place
Example:
- Mum, Ben keeps shutting me out of the bedroom!
- sunglasses that shut out 99 per cent of the sun’s harmful rays
to not allow a person to share or be part of your thoughts; to stop yourself from having particular feelings
Example:
- I wanted to shut John out of my life for ever.
- She learned to shut out her angry feelings.
- If you shut me out, how can I help you?