“Time when one has permission to be absent from work or duty” (Leave2, 2004).
Being allowed to be away from work.” (Dictionary of Human Resources & Personnel Management)

"leave2 n." Soanes, C. and Stevenson, A. (Ed.). (2004). The concise Oxford English dictionary. [Online]. Oxford: Oxford University Press. Oxford Reference Online. BLC Boston College Libraries. Retrieved June 8, 2005, from Dictionary of human resources & personnel management. (1997). Essex: Peter Collin Publishing.