collectively minimizing external light (during war), especially upwards directed (or reflected) light, to "hide" from enemy aircraft (in the case of an occupied country: the enemy of the occupying force)
large-scale power failure
short dysfunctioning of the brain (loss of consciousness or not being able to think well)
... Nowadays, doctors are often paid a very large salary, much more than most of the people they treat. They often receive money for a consultation, without giving any ...