ten·an·cy /ˈtɛnən(t)si/
  租佃,租賃
  Ten·an·cy n.; pl. Tenacies   Law (a) A holding, or a mode of holding, an estate; tenure; the temporary possession of what belongs to another. (b) O. Eng. Law A house for habitation, or place to live in, held of another.
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  tenancy
       n : an act of being a tenant or occupant [syn: occupancy]