A temporary loss of consciousness.
The blocking out of as much light as possible.
A large-scale power failure, and resulting loss of electricity to consumers.
A temporary loss of memory.
The mandatory blocking of all light emanating from buildings, as well as outdoor and street lighting as a measure against aerial bombing or naval attack, as imposed during, e.g., World War II.
An instance of censorship, especially a temporary one.
Inability or reduced ability to experience emotion.
Absent or reduced sensitivity to cutaneous stimulation.