singleitem

Singleitem is a term used informally in computing and commerce to refer to one unit of a thing, as opposed to a collection of items. It does not represent a formal standard with a single agreed-upon meaning; instead its meaning depends on context.

In data structures and programming, a singleitem is a member element within a container such as a list, array, set, or map. Operations typically focus on accessing, updating, or removing that one element, and distinguishing between singleitem references and bulk operations on multiple elements.

In inventory, logistics, and e-commerce, a singleitem denotes one unit of stock identified by a product or SKU. Records track attributes such as quantity, price, and location; transactions often refer to a singleitem when fulfilling orders or counting inventory.

In APIs and user interfaces, endpoints or views may be described as returning or manipulating a singleitem, for example by item ID. This contrasts with endpoints that provide collections or lists.

Related concepts include the singleton pattern, single-value items, and unit of measure. The term is generic and its precise definition depends on the domain.