The teacher cut off the student when he spoke out of turn.

To stop something from continuing or to remove it.
She cut off the power during the storm.
The manager cut off the discussion to move on.
He cut off the music when the phone rang.
cut off communication
cut off funding
cut off access
terminate
discontinue
halt
The cut off for applications is next week.

A point at which something is stopped or removed.
The cut off for the sale is tomorrow.
There is a cut off for submitting your report.
Make sure to meet the cut off for the contest.
application cut off
deadline cut off
service cut off
limit
boundary
termination
They live in a cut off area with no internet.

Isolated or not connected to others.
The storm left the town cut off from supplies.
The cabin is in a cut off location, far from the city.
She felt cut off from her friends after moving away.
cut off area
cut off community
cut off region
isolated
secluded
detached
She spoke cut off by the loud noise.

In a way that stops or interrupts.
He was cut off by the sudden rain.
The phone call was cut off unexpectedly.
She was cut off mid-sentence.
cut off abruptly
cut off suddenly
cut off mid-sentence
interrupted
halted
stopped