Zone  —n. 1 area having particular features, properties, purpose, or use (danger zone; smokeless zone). 2 well-defined region of more or less beltlike form. 3 area between two concentric circles. 4 encircling band of colour etc. 5 archaic belt, girdle. —v. (-ning) 1 encircle as or with a zone. 2 arrange or distribute by zones. 3 assign as or to a particular area.  zonal adj. [greek zone girdle]