Wash. Rev. Code § 35.63.010
As used in this chapter the following terms shall have the meaning herein given them: "Appointive members" means all members of a commission other than ex officio members; "Board" means the board of county commissioners; "City" includes every incorporated city and town; "Commission" means a city or county planning commission; "Council" means the chief legislative body of a city; "Ex officio members" means the members of a commission chosen from among city or county officials; "Highways" include streets, roads, boulevards, lanes, alleys, viaducts and other traveled ways; "Mayor" means the chief executive of a city; "Municipality" includes every county and city.
[ 1965 c 7 s 35.63.010. Prior: 1935 c 44 s 1; RRS s 9322-1.]