(1) For the purpose of these regulations, certain numbers, abbreviations, terms and words used herein shall be used, interpreted and defined as set forth in this section.
(2) Unless the context clearly indicates to the contrary, words used in the present tense include the future tense, words used in the plural number include the singular; the word “herein” means “in these regulations,” the word “regulations” means “these regulations.”
(3) A “person” includes a corporation, a partnership and an incorporated association of persons such as a club; “shall” is always mandatory; “used” or “occupied” as applied to any land or building shall be construed to include the words “intended, arranged or designed to be used or occupied.”