The terms or words used in this title shall be interpreted as follows where the context demands:
A. Words in the present tense include the future.
B. The singular number includes the plural and vice versa.
C. The word "shall" is mandatory and not discretionary; the word "may" is permissive.
D. The masculine gender includes the feminine and neuter.
E. The term "this title" shall be deemed to include the text, the accompanying zoning map and all amendments made to either after the effective date hereof. (1996 Code § 17.04.060)