For purposes of this chapter:
(1) "City" means a city or town;
(2) The meaning ascribed to words and phrases in chapters
82.04, 82.08 and
82.12 RCW, as now or hereafter amended, insofar as applicable, has full force and effect with respect to taxes imposed under authority of this chapter. However, the terms "retail sale" and "sale at retail" have only the meaning provided in RCW
82.08.010 for the purposes of this chapter, unless the context clearly requires that a different definition apply;
(3) "Taxable event" means any retail sale, or any use, upon which a state tax is imposed pursuant to chapter
82.08 or
82.12 RCW, as they now exist or may hereafter be amended. However, the term does not include a retail sale taxable pursuant to RCW
82.08.150, as now or hereafter amended; and
(4) "Treasurer or other legal depository" means the treasurer or legal depository of a county or city.