2. In this Act, unless there is anything repugnant in the subject or context,- (a) Collector of Customs means an officer of customs exercising the powers of a Collector of Customs under the ¹[Customs Act, 1969], and includes any person appointed by the Government to discharge the functions of a Collector of Customs under this Act; (b) "district" means an area defined as a district for the purposes of this Act under section 3; (c) "general lighthouse" means any lighthouse which the Government may, by notification in the official Gazette, declare to be a general lighthouse for the purposes of this Act; (d) "lighthouse" includes any light-vessel, fog-signal, buoy, beacon, or any mark, sign or apparatus exhibited or used for the guidance of ships; (e) "local lighthouse" means any lighthouse which is not a general lighthouse; (f) "local lighthouse authority" means ²[* * *], local authority or other person having the superintendence and management of a local lighthouse; (g) "owner" includes any part-owner, chatterer, or mortgagee in possession and any agent to whom a ship is consigned; (h) "port" means any port, as defined in the Ports Act, 1908, to which that Act extends; and (i) words and expressions used in this Act and not otherwise defined have the same meanings respectively as in the Merchant Shipping Act, 1923.