law: Indian Ports Act, 1908
  3. Definitions 
  In this Act, unless there is anything repugnant in the subject
  
  or context,- 
   5  [(1) "Magistrate" means a person exercising
  
  powers under the Code of Criminal Procedure, 1973]
  (2) "master", when used in relation to any vessel 6[or
  
  any aircraft making use of any port], means , subject to the provisions of any
  
  other enactment for the time being in force, any person (except a pilot or
  
  harbor-master 6[of the port]) having for the time being the charge
  
  or control of the vessel 6[or the aircraft, as the case may be] ;
  (3) "pilot" means a person for the time being
  
  authorized by the 2[Government] to pilot vessels.
  (4) "port" includes also any part of a river or
  
  channel in which this Act is for the time being in force;
  (5) "port-officer" is synonymous with
  
  master-attendant;
  (6) "ton" means a ton as determined or determinable by
  
  the rules for the time being in force for regulating the measurement of the net
  
  tonnage of British ships; and
  (7) "vessel" includes anything made for the conveyance
  
  6[mainly] by water of human beings or of property;
   7  [(8) "major port" means any port which the
  
  Central Government may by notification in the Official Gazette declare, or may
  
  under any law for the time being in force have declared, to be a major port;
  (9) "Government", as respects major ports, for all
  
  purposes, and, as respects other ports for the purposes of making rules under
  
  clause (p) of section 6(1) and of the appointment and control of port health
  
  officers under section 17, means the Central Government, and save as aforesaid,
  
  means the State Government.]