'occupancy' definitions:

Definition of 'occupancy'

(from WordNet)
noun
An act of being a tenant or occupant [syn: occupancy, tenancy]
noun
The act of occupying or taking possession of a building; "occupation of a building without a certificate of occupancy is illegal" [syn: occupation, occupancy, moving in]

Synonyms of 'occupancy'

From: Moby Thesaurus