lock-out

noun

1. The opposite of a strike; a labor disruption where management refuses to allow workers into a plant to work even if they are willing.
2. The action of installing a lock to keep someone out of an area, such as eviction of a tenant by changing the lock.
3. (by extension) The exclusion of others from a certain place or situation.“It's another front-row lockout for Mercedes on the starting grid of the Japanese Grand Prix.”
4. A situation where the system is not responding to input.