In this Act, unless there is something repugnant in the subject or context,—

   (1)  “district” includes a presidency-town;

   (2)  “Collector” means the chief officer in charge of the land-revenue administration of a district;

and

   (3)  “defaulter” means a person from whom an arrear of land-revenue, or a sum recoverable as an arrear of land-revenue, is due, and includes a person who is responsible as surety for the payment of any such arrear or sum.