Except where specifically defined herein, all words used in this title shall carry their customary meanings. Words used in the present tense include the future, and the plural includes the singular; the word "shall" is always mandatory, the word "may" denotes a use of discretion in making a decision. Words used in the masculine gender include the feminine, and the feminine the masculine. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003).