strong, robust

壯 is composed of 爿 (bed, table) and 士 (scholar, warrior). 爿 is a pictograph of a bed, with a surface large enough to display anything clearly, revealing the deeper significance of objects placed upon it. 士 is a pictograph of an axe-like weapon, representing a martial or strong figure. Thus, 壯 conveys the deeper significance of this axe-like weapon, meaning robust, strong, or heroic.