Occupancy
Part of speech: noun
Definition: The act of occupying, the state of being occupied or the state of being an occupant or tenant The period of time during which someone rents or otherwise occupies certain land or premises The specific use to which something occupied is put
Occupation
Part of speech: noun
Definition: An activity or task with which one occupies oneself; usually specifically the productive activity, service, trade, or craft for which one is regularly paid.The act, process or state of possessing a place.The control of a country or region by a hostile army.
Example sentence: Scientific research is one of the most exciting and rewarding of occupations.