The front-to-back placement of an object relative to other objects in a picture or document.
— Computer ScienceTo arrange in a sequence, such as alphabetic or numeric.
— Computer ScienceAn online purchase submitted by a user to your Web site.
— Computer ScienceThe order in which objects are placed in a layer. An object higher in the stack will cover up (appear on top of) one lower in the stack.
— Computer Science