Definition (exclusion)
to prevent a person or object from entering or re-entering a structure or premises
Due to the severe weather, the students had to shut all the windows to keep the cold wind out.
They set up a fence at the entrance to shut strangers out of the event.
To maintain peace, he decided to shut his roommate out and not let him enter the room.
to exclude an individual or group from participating in an event or activity
This decision shut some members out of the group discussion, leading to dissatisfaction.
The rules of the competition explicitly shut out participants under the age of eighteen.
Their approach continually shut out those with differing opinions.