(A) For the purpose of this chapter, the village and portions of the contiguous unincorporated territory within 1-1/2 mile of the nearest village limit as shown on the zoning map are divided into nine categories of zoning as follows:
(1) A: Agricultural District;
(2) SR-1: One-Family Residence District;
(3) SR-2: One-Family Residence District;
(4) MR-1: Two- and Three-Family Residence District;
(5) MR-2: Multi-Family Residence District;
(6) B-1: Community Business District;
(7) B-2: General Business District;
(8) PD-R: Planned Development - Residential;
(9) PD-B: Planned Development - Business.
(B) Whenever reference by letter designation is hereinafter made to any of the foregoing districts, such reference shall mean and include all of those districts whose symbols include such letter used in the reference (such as “R” Districts include the second through the fifth of the aforesaid districts of (A) above), unless otherwise indicated in the reference. Whenever reference by word designation is hereinafter made to any of the foregoing districts, such reference shall mean and include those districts whose names include such word used in the reference (such as “Residence” Districts means and includes the second through the fifth of the aforesaid districts of (A) above), unless otherwise indicated in the reference.
(`92 Code, § 40-2-1)