a non-military place such as a civilian's house where members of the military are given temporary lodgings, or an order directing that such lodgings be given;
e.g. The little house served as a billet for soldiers from the nearby army camp.
(verb)
to offer soldiers temporary lodgings in a non-military place such as a civilian's house, or order that a building be used to offer temporary lodgings to soldiers;
e.g. The town was ordered to billet the soldiers for the night.
(noun)
a thick or chunky block of wood, such as one used for firewood;
e.g. He chopped the billet in half and added it to the fire.