Both Uses

furlough
in
Slaughterhouse-Five
(Edited)

Billy was given an emergency furlough home because his father, a barber in Ilium, New York, was shot dead by a friend while they were out hunting deer.
Chpt 2 *

furlough = temporary leave from work or duty
When Billy got back from his furlough.
Chpt 2

Definitions:

(1) (furlough)
a temporary leave from work, duty, or confinement, usually granted by an employer, the military, or an institution

Furloughs are often without pay in private companies, but government workers are sometimes furloughed with pay, especially during shutdowns. A prison furlough is a temporary release from prison, usually for a specific reason, like visiting family or attending a funeral.
(2) (meaning too rare to warrant focus)
Less commonly, Furlough is used as a last name.