Dual-purpose is a noun and adjective referring to things serving two purposes. It can specifically refer to: *

Dual-use technology In politics, diplomacy and export control, dual-use items refers to goods, software and technology that can be used for both civilian and military applications.

Dual-purpose gun A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets. Description Second World War-era capital ships had four classes of artillery: the heavy main battery, intended to engage opposing battleships and ...

, a naval artillery mounting designed to engage both surface and air targets ** Dual-Purpose Improved Conventional Munition ** Dual-purpose motorcycle, designed for both on- and off-road use ** Dual Purpose Ladder (London Fire Brigade), a standard type of firefighting vehicle used by the London Fire Brigade ** Fighting knife **

Viaduct A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide va ...

, a road bridge-aqueduct * Dual-purpose breed, an animal or plant breed that provide at least 2 kinds of resources, for example,

beef cattle Beef cattle are cattle raised for meat production (as distinguished from dairy cattle, used for milk production). The meat of mature or almost mature cattle is mostly known as beef. In beef production there are three main stages: cow-calf oper ...

See also