0 the act of deciding, or the decision that has been taken about, what particular use an area should have:
zoning laws
1 the act of setting rules for the use of land and the types of structures that can be built on it:
The town’s new zoning establishes a height limit of eight stories on any new building.
San Francisco has strict zoning laws to preserve neighborhoods.
2 the process of giving a special purpose to a particular area, such as an area in a town: