Exchange may refer to:

Physics

Gas exchange Gas exchange is the physical process by which gases move passively by diffusion across a surface. For example, this surface might be the air/water interface of a water body, the surface of a gas bubble in a liquid, a gas-permeable membrane, or a ...

is the movement of oxygen and carbon dioxide molecules from a region of higher concentration to a region of lower concentration.

Places

United States

Exchange, Indiana Exchange is an unincorporated community in Green Township, Morgan County, in the U.S. state of Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 Stat ...

, an unincorporated community *

Exchange, Missouri Exchange is an unincorporated community in southwest Reynolds County, in the Ozarks of southeast Missouri. The community is located along Missouri Route 106 Route 106 is a highway in the southern part of the US State of Missouri. Its eastern ...

, an unincorporated community *

Exchange, Pennsylvania Exchange is an unincorporated community in Montour County, Pennsylvania. History A post office A post office is a public facility and a retailer that provides mail services, such as accepting letters and parcels, providing post office box ...

, an unincorporated community * Exchange, West Virginia, an unincorporated community

Elsewhere

* Exchange Alley, in London, United Kingdom * Exchange District, a historic area in Winnipeg, Manitoba, Canada

Business and economy

*'' Bureau de change'', a business whose customers exchange one currency for another * Cryptocurrency exchange, a business that allows customers to trade cryptocurrencies or digital currencies. * Digital currency exchangers (a.k.a. DCEs or Bitcoin exchanges), businesses that allow customers to trade digital currencies for other assets, such as conventional fiat money, or different digital currencies *

Exchange (economics) A market economy is an economic system in which the decisions regarding investment, production and distribution to the consumers are guided by the price signals created by the forces of supply and demand, where all suppliers and consumers are ...

Exchange (organized market) An exchange, bourse (), trading exchange or trading venue is an organized market where (especially) tradable securities, commodities, foreign exchange, futures, and options contracts are bought and sold. History 12th century: Brokers on the ...

* Exchange rate (a.k.a. foreign exchange rate), the price for which one currency is exchanged for another * Foreign exchange company, a broker that offers currency exchange and international payments *

Foreign exchange controls Foreign exchange controls are various forms of controls imposed by a government on the purchase/sale of foreign currencies by residents, on the purchase/sale of local currency by nonresidents, or the transfers of any currency across national b ...

, controls imposed by a government on the purchase/sale of foreign currencies *

Foreign exchange market The foreign exchange market (Forex, FX, or currency market) is a global decentralized or over-the-counter (OTC) market for the trading of currencies. This market determines foreign exchange rates for every currency. It includes all as ...

(a.k.a. forex, FX, or currency market), a global decentralized market where one currency is exchanged for another * Foreign-exchange reserves, holdings of other countries' currencies * Foreign exchange risk, arises from the change in price of one currency against another *

Trade Trade involves the transfer of goods and services from one person or entity to another, often in exchange for money. Economists refer to a system or network that allows trade as a market. An early form of trade, barter, saw the direct exch ...

, the exchange of goods or services for money or other goods or services

Military

Post exchange An exchange is a type of retail store found on United States military installations worldwide. Originally akin to trading posts, they now resemble contemporary department stores or strip malls. Exact terminology varies by armed service; some exam ...

(a.k.a. "PX" or base exchange), a retail store operated by Army and Air Force Exchange Service on US military installations worldwide; originally akin to trading posts, they now resemble contemporary department stores or strip malls. *

Prisoner exchange A prisoner exchange or prisoner swap is a deal between opposing sides in a conflict to release prisoners: prisoners of war, spies, hostages, etc. Sometimes, dead bodies are involved in an exchange. Geneva Conventions Under the Geneva Conven ...

* , an American Civil War steamer

Technology

* .exchange, an ICANN-era generic Internet top-level domain *

Internet exchange point Internet exchange points (IXes or IXPs) are common grounds of IP networking, allowing participant Internet service providers (ISPs) to exchange data destined for their respective networks. IXPs are generally located at places with preexisting ...

(IX), physical infrastructure connecting Internet service providers' networks * Microsoft Exchange (disambiguation) *

Telephone exchange telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital syste ...

, a system that connects telephone calls

Art, entertainment, and media

Games

* Exchange (chess), closely related or sequential captures of pieces of both players in a chess game ** The exchange (chess), a specific type of exchange where a player exchanges a minor piece for an opponent's rook

Music

* ''Exchange'' (song), a 2015 song by

Bryson Tiller Bryson Djuan Tiller (born January 2, 1993) is an American singer and rapper. Born in Louisville, Kentucky, he began his career in 2011 with a mixtape entitled ''Killer Instinct Vol. 1''. Tiller initially gained mainstream success in 2015 follow ...

* Exchange, a new-age/atmospheric instrumental band composed of Steve Sexton and

Gerald O'Brien John Gerald O’Brien (2 December 1924 – 13 December 2017), known as Gerald O'Brien, was a New Zealand politician of the Labour Party. Early life O'Brien was born in Wellington on 2 December 1924, the son of John Thomas O'Brien, and was ed ...

and also their 1992 self-titled album * ''Exchange'' (album), a 1999 split EP by the punk bands Against All Authority and The Criminals * "Exchange" or "(Exchange)", two songs on Massive Attack's ''Mezzanine'' (album)

Film

* Exchange (film), 2015 South Korean crime thriller

Other uses

Cultural exchange Cultural diplomacy is a type of public diplomacy and soft power that includes the "exchange of ideas, information, art, language and other aspects of culture among nations and their peoples in order to foster mutual understanding". The purpose ...

Student exchange program A student exchange program is a program in which students from a secondary school (high school) or university study abroad at one of their institution's partner institutions. A student exchange program may involve international travel, but d ...