For the purpose of this Ordinance, certain terms or words used herein shall be interpreted as follows:
(a) The word "person" includes a firm, association, organization, partnership, trust, company, or corporation as well as an individual.
(b) The present tense includes the future tense, the singular number includes the plural, and the plural includes the singular.
(c) The word "shall" is a mandatory requirement, the word "may" is a permissive requirement, and the word "should" is a preferred requirement.
(d) The word "used" or "occupied" include the words "intended, designed, or arranged to be used or occupied."
(e) The word "lot" includes the words "plot" or "parcel."