"township"
includes—
| (a) | a group of pieces of land, or of subdivisions of a piece of land, which are combined with public places and are used mainly for residential, industrial or similar purposes, or are intended to be so used; |
| (b) | any combination of such groups which is suitable for registration in one register; |
| (c) | any area of land registered or recognised at the commencement of this Act in a deeds registry as a township if a general plan thereof is filed in that deeds registry or in the office of the surveyor-general concerned; and |
| (d) | any township established, approved, proclaimed or otherwise recognised as such under any law. |